Leonard is caught between a rock and a hard place when he becomes responsible for distributing extra grant money; Bernadette turns the backyard playhouse into a hideaway to get away from her husband and kids.

All Elite Wrestling continues to inject new spirit, freshness and energy into mainstream wrestling featuring a world-class roster of diverse male and female wrestlers.

When Angela finds out about her husband's affair, she goes to Dwight for help; Stanley and Phyllis take advantage of Jim when he needs a favor; Pete distracts Pam as she begins painting her mural.

Dwight picks up the slack when the party planning committee fails to plan a Christmas party; Darryl worries Jim has forgotten the promise he made; Pete teaches Erin about "Die Hard.".

Pam accidentally brings lice into the office but lets Meredith take the blame; Jim spends a great day in Philadelphia with a potential business associate; Nellie, Phyllis and Kevin interfere with Darryl's love life.

Everyone abuses the office's new espresso machine; Dwight takes Clark on a sales call; Darryl goes for an interview at Jim's company; Pam surprises Jim with a visit.

Dwight tries to stop Darryl from leaving; Jim misses Cece's first recital because of work, upsetting Pam; Nellie exposes Erin and Pete.

David Wallace asks Dwight to find a new part-time salesman who will fill in for Jim; Pam looks for a new desk mate; Erin searches for her birth parents.

Nellie and Dwight spring into action when Pam needs help finding the vandal who defaced her mural; Darryl has a hard time dealing with Jim's habits.

The staff pairs off into pretend couples so they can take advantage of a Valentine's Day discount at a minimall; Erin claims she will break up with Andy when he returns, but Pete has his doubts.

During an interview for a job in Philadelphia, a manager gives Pam déjà vu; Dwight asks Angela to join him on a mission; Andy returns from his trip.

During an interview for a job in Philadelphia, a manager gives Pam déjà vu; Dwight asks Angela to join him on a mission; Andy returns from his trip.

Dwight takes a trip home for a Schrute funeral; Todd Packer tries to make up for a lifetime of bad behavior.

The office employees are excited when TV commercials for the documentary begin airing; Angela is jealous when Dwight starts dating a farmer; Jim meets with professional baseball player Ryan Howard.

The elevator goes out at the office, forcing everyone to use the stairs; Dwight forces Stanley to make a sales call; Pam and Jim talk to Nellie and Toby about relationship problems; Angela supports her man.

Dwight and Angela compete in a paper airplane contest; Andy prepares for an acting role; Jim and Pam use new skills.

Phil and Claire panic when an obnoxious couple looks at the house for sale next door; Jay learns Manny's girlfriend is the granddaughter of a business rival -- after forbidding Manny to see her; Cam and Mitch are scared of Lily's teacher (Tyne Daly).

When Claire lets Phil take charge of Halloween, he decides to do something different from her usual fright-fest theme; Jay wants to be Prince Charming for Halloween -- complete with a full head of hair; Cam becomes overwhelmed.

Phil and Claire aren't sure what to think when Haley and Andy start spending a lot of time together; Gloria hires a Spanish tutor for Manny; Cam and Mitch run into a popular journalist at a school function.

With Phil and Luke cooking Thanksgiving dinner, Claire decides to prepare a secret back-up turkey; Jay and Gloria's trip is canceled at the last minute; Lily refuses to wear a nice dress to dinner.

Sheldon must choose sides in an ethical dilemma; Mary tries her hand at writing; Mandy needs a new place to live.

Sheldon makes a terrifying mathematical discovery while tutoring Billy; Mary is jealous of Missy's relationship with Mandy and MeeMaw.

At college, Sheldon decides to expand his responsibilities and become a dorm resident adviser; Meemaw and Dale make a sketchy business deal; Mary and George Sr. rekindle their romance.

George Sr. is asked to help with the football team; Mandy discovers Georgie and Meemaw's secret business.

Sheldon's search for a comic book leads him to a breakthrough; Georgie and Mandy have an uncomfortable first encounter with her parents.

Sheldon's database invention puts him at odds with the university; the church takes issue with Meemaw's video store.

Rachel frantically tries to get to London to tell Ross that she loves him before he marries Emily; Ross' parents argue with Emily's parents, Steven and Andrea Waltham.

Ross is distraught over the wedding; Emily punches Ross and flees from the reception; Monica and Chandler try to control their passions.

Monica and Chandler are caught in a passionate embrace but try to prove it was innocent: Ross' wife won't speak to him; Phoebe feels neglected; Rachel appoints Monica as her advisor in romance.

Phoebe prepares to give birth, but the doctor makes her nervous; Joey gets admitted in great pain; Monica plans a date with a male nurse to spite Chandler.

Ross' estranged bride makes him an offer; Phoebe deals with traumatic memories of PBS; Monica gets upset at Chandler when he gloats about sex; Joey challenges Phoebe to perform a completely selfless act.

An exchange between Ross and Rachel threatens to break up the friends; Chandler and Monica plan a romantic weekend getaway together; Joey finds out about Monica and Chandler.

Phoebe is surprised to discover that she enjoys wearing mink; Ross confronts Emily, and she demands a divorce; Monica and Rachel are afraid of a hairy new neighbor, until they find out how handsome he is with his hair cut.

Personal habits clash when Ross moves in with Chandler and Joey; Phoebe dates a health inspector (Gregory Sporleder); Rachel schemes to get her new neighbor to ask her out on a date.

As the gang digests Monica's huge Thanksgiving meal, everyone reminisces about their worst Thanksgiving ever.

Ross becomes upset when someone at work takes his sandwich from the refrigerator and eats it; Joey finds himself in a mess when he tries to cover for Chandler and Monica's dating.

Phoebe helps the Salvation Army and learns some truths about New Yorkers; Rachel gets a date with her neighbor who has a close relationship with his sexy sister; Joey tries to write a play in which he can be the star.

Ross vows to try something new; Joey resolves to learn guitar from Phoebe; Rachel gives up gossiping.

Sheldon tries to bond with Amy's father, but when Wolowitz lures Mr. Fowler away with magic tricks, Sheldon has no choice but to bond with Mrs. Fowler; Koothrappali and Anu try to get physical for the first time.

Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and disproved; Bernadette wants to beat Howard in a popular video game.

A VHS tape from Sheldon's past inspires him not to give up; Bernadette turns into a pageant mom when she tries to help Wolowitz with his Magic Castle audition.

Penny and Leonard organize a paintball game, which results in mayhem when Sheldon becomes jealous of Amy; Koothrappali catches Anu with her ex-boyfriend; Stuart doesn't want to move in with Denise.

Penny's ex-boyfriend Zack learns that he is infertile, so he asks Leonard for help; Koothrappali attempts to mend things with his ex-fiancee Anu.

Sheldon and Amy are thrilled when their super asymmetry theory is proven by two physicists, until they try to kick Amy off the Nobel nomination; Bernadette has a big success at work.

Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the law; Leonard is disappointed when his friends exclude him from a scientific project.

Penny tries to throw a wrench into Leonard's plan to be a sperm donor for her ex-boyfriend; Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali's canceled bachelor party into a couple's trip aboard the "vomit comet.".

The gang uses deception and betrayal to make it to the one open seat at Wil Wheaton's celebrity Dungeons and Dragons game with William Shatner, Joe Manganiello, Kareem Abdul-Jabbar and Kevin Smith.

When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is left in charge of the kids; Sheldon finds a book about experimenting on kids.

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to win over Nobel laureates Kip Thorne, George Smoot and Frances Arnold; Halley's fear of the dark leads to opportunity and conflict.

The weight of winning a Nobel Prize weighs heavy on Amy's shoulders; Koothrappali and Wolowitz try to relive the good old days after Wolowitz buys a scooter that looks like the one he had years ago.

Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life; Leonard wants to be the principal investigator on a plasma physics study.

Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should turn him in or not; Wolowitz learns that Bernadette wasn't the only waitress at the Cheesecake Factory who had a crush on him.

NHL forward Wyatt Johnston and Howie Mandel set up NHL defenseman Lian Bichsel at a restaurant where a romantic proposal meltdown turns him into the unwitting villain.

Anthony Davis lures former NFL defensive lineman Gerald McCoy into a movie audition where he damages superhero memorabilia.

Joey Fatone interviews the Jokers for a fake documentary; the guys react to an overly emotional phone call for an underwhelming reason; one Joker checks out and is forced into being the world's worst grocery store employee in his punishment.

The Jokers hit the grocery store aisles dressed in absurd disguises, then train someone in using aggressive phone tactics for charity donations; the losing Joker must subject themselves to scientific probing into their hidden emotions.

Past and present Dunder Mifflin employees gather for a wedding and a final round of interviews.

Past and present Dunder Mifflin employees gather for a wedding and a final round of interviews.

When a documentary crew comes to Dunder Mifflin to learn about modern management, manager Michael Scott tries to paint a happy picture of his domain, but his jokes keep falling flat.

Michael's offensive behavior prompts the company to sponsor a seminar on racial tolerance and diversity; Jim has trouble securing his biggest yearly commission.

When forced to pick a cheaper health care plan, Michael, rather than lose popularity points with his staff, shirks the responsibility to Dwight.

Michael tries to raise employee morale with a birthday party amid rumors of downsizing.

Michael and gang play the warehouse workers in a not-so-friendly game of basketball; Michael bets that the losers will have to work on Saturday.

Dwight, Michael and Jim all vie for the attention of an attractive woman who comes to the office to sell purses.

Steve feels better about having to wear a back brace after Stan admits he has worn a toupee since he was Steve's age; Roger and Francine try to sneak in an unpaid guest on their spa retreat for two.

A co-worker gives Stan pills that allow him to stay up all night after he becomes fed up with a lack of alone time.

Claire and Phil worry that Alex's boyfriend is imaginary; Manny might ruin Jay's plan to avoid attending a party; Mitch and Cam's new white couch becomes a mishap waiting to happen.

The whole family takes Haley to a bar to celebrate her 21st birthday; Phil and Jay hit a snag while trying to pick up Haley's present; Lily asks Alex, Luke and Manny where babies come from.

Sheldon considers dropping out of college to focus on building his database; George Sr. is frustrated when someone else gets credit for his football wins.

Mary struggles to make new friends; Mandy pushes Georgie to date another woman.

Sheldon learns the university is building a database without him; Mary takes care of a bedridden Mandy and Meemaw.

Mary butts heads with Mandy's mother, Audrey; Sheldon attempts male bonding.

Paige drags Sheldon to a college party; Missy gets caught in a lie.

The Coopers can't be found as Mandy goes into labor; Sheldon is excited about the launch of his database.

Monica is put off by the laugh Chandler uses to impress his boss (Sam McMurray); Ross shocks everyone by dating Janice (Maggie Wheeler).

Phoebe meets her estranged father (Bob Balaban) at her grandmother's funeral; Joey's fondness for an expensive bag loses him an audition; Chandler tells perfectionist Monica that she is useless at massage.

Ross must prove to his boss that he is sane in order to return to work; Phoebe finds out about Monica and Chandler's relationship; Ross hunts for a new apartment.

Chandler gets nervous when everyone learns about Monica; Joey's new girlfriend gets physical; Ross moves into a new apartment but fails to impress his new neighbors.

Phoebe finds a police officer's badge and goes on a spree of arrests until she meets up with the owner; Joey thinks he's in love with Monica; Ross buys a couch but won't pay to have it delivered.

Rachel worries about a kiss she gives to a job interviewer; Monica observes Phoebe's romantic bliss; Joey is arrested for stalking a sexy neighbor.

Rachel tries to impress her boss by smoking, which gives Chandler fond memories of his former addiction; Ross's son and Joey audition for the same part in a commercial.

Ross competes with Chandler for the attentions of a pizza deliverywoman (Kristin Dattilo-Hayward); Joey discovers that his guest-starring role on "Law & Order" was cut while watching the show with his proud grandmother.

Joey tries to save Ross' life when he thinks he hears gunshots while on patrol with Phoebe's police officer boyfriend.

Monica interrupts Joey and Ross' friendly game of catch; Gary (Michael Rapaport) asks Phoebe to move in with him.

Joey lands his first lead role and finds his movie crew in a bind; Rachel gets an eye infection; Phoebe can't quite remember why she hates Ross.

The gang surprises Joey by joining him in Las Vegas on a film shoot; a winning streak leads Chandler to press his luck with a proposition.

Leonard is pleasantly surprised when Beverly comes to visit, and she's genuinely kind to him, until he finds out the real reason she's there; Denise and Stuart overstay their welcome at the Wolowitz house.

Sheldon and Amy await big news.

Bernadette and Wolowitz leave their kids for the first time; Penny and Leonard try to keep a secret; Sheldon and Amy stick together; Koothrappali makes a new friend; the gang travels together into an uncharted future.

Leonard is happy to meet new neighbor Penny, but his roommate thinks he is chasing an impossible dream.

Leonard volunteers to sign for a package, hoping to make a good impression on Penny.

Unhappy to learn that Penny is seeing someone, Leonard summons the courage to ask another woman on a date.

Getting fired gives Sheldon the opportunity to explore life beyond physics, but when he spends his time weaving ponchos and acting like a shut-in, Leonard calls Sheldon's mother for assistance.

Leonard, realizing his pursuit of Penny is fruitless, has an unexpected encounter with a fellow scientist (Sara Gilbert).

Still haunted by Beetlejuice, Lydia's life gets turned upside down when her daughter discovers a portal to the afterlife. When someone says Beetlejuice's name three times, the mischievous demon returns to unleash his very own brand of mayhem.

A mysterious lawman tracks three escaped convicts searching for buried treasure in the 1930s Mississippi.

Still haunted by Beetlejuice, Lydia's life gets turned upside down when her daughter discovers a portal to the afterlife. When someone says Beetlejuice's name three times, the mischievous demon returns to unleash his very own brand of mayhem.

A mysterious lawman tracks three escaped convicts searching for buried treasure in the 1930s Mississippi.

The Jokers are unsympathetic store managers, forced to throw out a disruptive customer before dealing with the wrath and disdain of fellow patrons.

The Jokers hatch horrible revenge schemes on their office bullies, then put one poor contractor through the wringer as they attempt home improvement projects; tonight's loser will be gifted the world's finest douchemobile.

The Jokers play unprofessional actors in a fake commercial then make wild assumptions about other mall goers; one Joker breaks and is tasked with becoming the strictest security guard imaginable in his punishment.

Olympic gold medalist Tara Lipinski unknowingly becomes the target of Anthony Davis's elaborate prank, while former NFL quarterback Robert Griffin III attends a feel-good locker-room dedication that doesn't go as planned.

Anthony Davis pranks former NFL tight end Marcedes Lewis when a routine valet drop-off turns into joyrides and errands; NBA coach Jason Kidd sends NBA player Cooper Flagg into a rookie symposium that devolves into awkwardness.

Chandler and Monica reconcile and hastily decide to get married; Ross and Rachel get drunk and roam the casino; Phoebe deals with a lurker on the slot machines.

Hung-over Rachel and Ross wonder if they got married while in Vegas; Monica and Chandler search the Strip for signs that they are altar-bound.

Ross seeks Phoebe's advice to help him sort out the legal status of his relationship with Rachel; Monica and Chandler plan to move in together.

Ross has Rachel on his mind when he gets between feuding Monica and Chandler; Joey advertises for a specific roommate.

A hernia-bearing Joey tries to pick up a quick acting gig; Rachel discovers that Ross never had their marriage annulled.

Rachel wants Ross to admit that he's mentally unbalanced so that a judge will grant them an annulment.

While Monica helps Rachel move out, the two women have a war of words; Chandler says a "financial" adios to Joey.

Rachel regrets asking Phoebe to jog with her when her uncoordinated movements attract unwanted attention.

After bleaching his teeth, Ross discovers they glow in the dark; Joey's new roommate wants to redecorate.

A chosen hobbit (Elijah Wood) and his loyal friends join a wizard (Ian McKellen), humans, a dwarf and an elf on a quest to destroy a powerful ring and defeat an evil lord.

Now divided, members of a fellowship take different paths to destroy the ring and defeat evil Sauron and his pawns.

Frodo (Elijah Wood) and Sam march toward Mount Doom to destroy the ring, while Gandalf (Ian McKellen) and warriors prepare for a final confrontation with Sauron and his allies.

Wonder Woman musters all of her strength, wisdom and courage as she finds herself squaring off against Maxwell Lord and the Cheetah, a villainess who possesses superhuman strength and agility.

Harley Quinn faces the wrath of narcissistic crime boss Black Mask and every other thug in Gotham. But things soon even out for Harley when she becomes unexpected allies with three deadly women -- Huntress, Black Canary and Renee Montoya.

The Dunder Mifflin employees suffer through the annual office awards ceremony, The Dundies, hosted by Michael at their local watering hole, a Chili's restaurant.

Corporate office requires the staff go through sexual harassment training, but Michael worries that the new policy will make the office less fun for everyone.

While Michael and Dwight are away from the office, Jim and Pam organize an office Olympics where employees compete in ridiculous games.

A small fire in the kitchen forces the staff to wait in the parking lot; Jim suggests a game of Desert Island; Michael tries to impress Ryan.

Halloween is not much fun for Michael when he learns he must fire someone; Jim and Pam put Dwight's CV on the internet.

When Dwight karate-chops Michael in the stomach at work, a lunchtime rematch is quickly organized; things become awkward between Pam and Jim.

Michael and Jan try to land a new client by taking him out to Chili's; back in the office, Jim finds a script written by Michael and the workers cannot resist acting it out.

Everyone is on edge during performance review, including Michael, who steals the employee suggestion box to get ideas he can present to his boss.

Chandler finds out Monica never told her parents he was living with her; Rachel tries her hand at making dessert.

Janine invites Joey, Monica and Ross to a TV taping; Phoebe and Rachel want an early glimpse at their Christmas gifts.

Janine's attitude causes strife between Joey and his friends; Rachel gets an apothecary table from a flea market.

Ross and Chandler argue over authorship of a joke; a question from Monica puts Phoebe on the spot; Joey reluctantly takes a job at Central Perk.

Rachel is worried about her sister's flirtation with Ross; sickly Monica is well enough to seduce Chandler; Joey uses free food to lure women to date him.

Rachel and her sister get into a heated sibling rivalry over Ross; Chandler confesses he hasn't cried since he was a child.

When Rachel tells her friends about Barry and Mindy's impending divorce, the others speculate how their lives could have turned out if they had chosen different paths.

Carol and Ross decide to spice up their marriage; Rachel goes to Joey's and kisses him; Rachel catches Barry cheating.

Chandler's anniversary gift to Monica is really one an ex-girlfriend gave him; Joey hires a look-alike; Ross tries to teach martial arts to Rachel.

Ross toys with dating one of his students; a curling iron starts a fire in Phoebe and Rachel's apartment.

Monica and Phoebe compete to find Rachel a date; Joey tries to con his friends into buying him a new refrigerator.

Chandler jeopardizes Joey's chances for the lead role in a TV series when he forgets to take down a message.

Ross recruits some friends to go with him on his first meeting with Elizabeth's father (Bruce Willis); Phoebe makes Chandler and Monica paranoid by chronicling their every move.

Elizabeth and Ross decide to hide their relationship from her father and head up to his cabin for the weekend.

Chandler asks Phoebe to help him choose a special ring; Rachel urges Paul (Bruce Willis) to express his feelings.

Chandler continues to pretend to hate the idea of marriage, unaware Richard wants Monica back; Rachel and Phoebe discuss their backup plans.

Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.

Penny sleeps on Leonard and Sheldon's couch when Wolowitz seduces her friend and takes over her apartment; in need of a fourth member, the guys ask Penny to join their "Halo" team.

On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks, but his date takes an interest in Sheldon.

Penny tries to mediate when Sheldon and Leonard disagree on whether to present their joint findings at a physics conference.

Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing, but the elaborate lie Sheldon tells leads to an unexpected result.

Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.

Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.

When Sheldon tries to prove his mental superiority as they train for the Physics Bowl, the guys kick him off the team and bring his nemesis (Sara Gilbert) aboard.

Leonard and the guys buy a time machine prop from a classic movie; Penny tells the guys their obsession with comics and toys is pathetic.

Leonard devises a plan to eliminate his rivals when he, Wolowitz and Koothrappali all fall for Sheldon's twin sister, but his plan backfires when Sheldon decides to choose who his sister dates.

Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party; Sheldon unexpectedly gets to live out one of his biggest fantasies in an electronics store.

When Leonard finally works up the courage to ask Penny out on a date, they each turn to Sheldon for advice.

Andy decides to quit his job and pursue his dream; Dwight has his best day ever at work; Jim comes back to Scranton to spend more time with Pam.

Andy decides to quit his job and pursue his dream; Dwight has his best day ever at work; Jim comes back to Scranton to spend more time with Pam.

As everyone prepares for the premiere of the documentary, Jim convinces Dwight that he needs to hire an assistant to the assistant to the regional manager; after being turned away at daycare, Angela brings her baby to work.

As everyone prepares for the premiere of the documentary, Jim convinces Dwight that he needs to hire an assistant to the assistant to the regional manager; after being turned away at daycare, Angela brings her baby to work.

Worlds collide when the Flash travels back in time to change the events of the past. However, when his attempt to save his family alters the future, he becomes trapped in a reality in which General Zod has returned, threatening annihilation.

Steve finds popularity among the technologically inclined at BIT; Laura makes a break and moves in with Myra.

The Winslows realize their feelings for 3J when he runs away from the group home.

Eddie learns a revealing lesson when Greta takes a part-time job.

Ventriloquist Steve's look-alike dummy comes to life on Halloween.

Sheldon confronts the failure of his database; Georgie and Mandy struggle as new parents; Missy feels forgotten.

Missy steals her dad George's truck and runs away from her house; she hits the road with her friend Paige.

Georgie goes on a birthday date; Mary confronts Brenda about her relationship with George; Sheldon takes an interest in Missy's favorite TV show.

Sheldon wants to search for life on other planets; Mandy answers Georgie's marriage proposal; Missy is caught between two friends.

Mandy gets an exciting job opportunity; Sheldon worries that he's falling behind; Georgie takes his daughter to work.

The gambling room gets broken into; Sheldon wants to study abroad; Missy makes a new friend.

Monica and Chandler encounter Richard (Tom Selleck), Monica's former boyfriend, in a romantic restaurant.

Monica feels that Rachel is trying to steal the spotlight from her engagement; Chandler worries about his performance in the bedroom.

Monica learns what her parents have done with her wedding fund; Joey teases Rachel about her late-night reading material.

Chandler's efforts to bond with Monica's father (Elliott Gould) backfire during a racquetball game; Rachel tries to teach Joey how to sail; Monica tries to replicate Phoebe's grandmother's cookie recipe.

Rachel considers hiring an inexperienced but handsome man over a better qualified woman as her executive assistant.

Rachel makes her handsome new assistant (Eddie Cahill) hang out with Joey rather than the women in her office.

Monica makes Chandler apologize to an old girlfriend (Stacy Galina) for leaving her because she was fat; Monica struggles to select a maid of honor.

Ross' doctoral dissertation is stored in a remote corner of the university library frequently used by students having sex; Rachel and Phoebe bond with Joey's date (Kristin Davis), then try to convince him to continue seeing her.

Tag joins for Thanksgiving dinner; Joey may have ruined Rachel's chances with Tag when he opens his mouth during dinner; Phoebe reveals that she has been secretly keeping a dog in her room for a few days while its owner is away.

Rachel finds it embarrassing that she is paying the way for her hunky new boyfriend (Eddie Cahill), who is also her assistant at work.

Ross' attempts to introduce his son, Ben, to Hanukkah are thwarted by the tyke's like of all things Christmas.

Phoebe and Joey are at odds when she tries to cancel their weekly dinner plans so she can meet an old beau.

Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

After seeing Penny with a handsome new guy, Leonard rushes into a rebound relationship with Sheldon's nemesis, Leslie Winkle.

Sheldon creates a monster when he introduces Penny to online gaming.

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Sheldon and the gang are confused when a young grad student is attracted to him.

When Sheldon bans Penny from the apartment for a series of petty infractions, Penny vows to get revenge.

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

Leonard asks Penny for advice when his new relationship starts moving too fast.

Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

When Penny's comment about Wolowitz's love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting-robot competition.

Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.

Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

When Michael begins monitoring their e-mails, he manages to upset all the employees.

After Michael suggests a game of "Yankee Swap" with the Secret Santa gifts, everyone fights over Michael's gift to Ryan, bringing morale to an all-time low.

When Michael takes the Mifflin crew on a motivational harbor cruise, things get out of hand and Michael ends up in the brig.

After he has an accident while using a grill, injured Michael demands attention from the entire Dunder Mifflin office.

Because Jim fears Michael will tell the others he likes Pam, he pretends to be Michael's best friend.

When someone stains the carpet in Michael's office, he begins to question his popularity among his staff.

When Jan conducts a seminar for the female employees, Michael takes the guys to the warehouse for some male bonding.

Michael visits corporate headquarters in New York on Valentine's Day.

When Dwight, who has a fear of public speaking, is asked to give a speech at a sales convention, he turns to Michael for help.

Michael strikes up a friendship with the 5-year-old daughter of his enemy when children visit the office.

Michael takes the Dunder Mifflin employees ice skating to celebrate his birthday; Kevin waits nervously for test results.

Dwight finds half a joint in the parking lot and launches a full investigation; Michael asks an unusual favor.

Chaos ensues when Michael takes responsibility for conflict resolution from the Human Relations department.

As a playground supervisor, Steve has a hard time controlling the bullies.

Sal, Q and Murr are crashing and burning into product displays and hiding in tight spaces, but one of them must face the music with celebrity guest Bret Michaels.

The music group New Edition helps Stefan woo Laura when their long-distance relationship begins to suffer.

The jokers give unsolicited etiquette advice and live tape strange product reviews; one lucky joker takes all the blame for celebrity guest Post Malone.

Myrtle Urkel pushes Eddie to marry her and has Big Daddy help her apply the pressure.

From working remotely to pitching unconventional business ideas with Steve Byrne, one Joker has a shot at winning a pair of highly sought-after sneakers thanks to NBA star Anthony Davis.

Mandy surprises Georgie with a spa weekend; Sheldon prepares for his summer in Germany.

Sheldon and Mary head to Germany while the rest of the Cooper family braves a tornado that is heading straight for Medford.

News of the tornado reaches Sheldon and Mary in Germany; with the Cooper house in chaos, Missy steps up.

Sheldon realizes he is the weakest student in his class; Meemaw looks to expand her gambling business.

Sheldon explores Germany behind Mary's back; Missy attempts to pull a fast one on George Sr.; Meemaw and Dale adjust to living together.

Missy steps up; Mary has a surprise for George; Sheldon finds his dorm occupied.

During their first night together, Rachel and Tag realize they forgot to ship out an important package at the office.

On her first day as a telemarketer, Phoebe encounters a distraught man (Jason Alexander) who is determined to end his life.

Celebrating Rachel's 30th birthday inspires the friends to reminisce about their own 30th birthdays -- Joey got angry with God for breaking their deal; Ross bought a sports car; Monica got drunk and embarrassed herself at her surprise party.

Joey accidentally informs a cast member (Susan Sarandon) that she will be fired so that his character will get her character's brain.

Monica and Chandler fondly reminisce about London until a startling revelation leaves Chandler floored.

Monica regrets telling a woman about a discount bridal shop when they end up competing for a wedding dress.

Joey is overjoyed to be nominated for a "Soapie" award; engaged Monica frets when she realizes she will never experience the thrill of a new relationship again; Ross spots Chandler sneaking out of a male strip club.

Joey auditions for a big role which will require him to appear naked; Rachel and Phoebe plan Monica's bridal shower; Ross and Monica's attractive cousin visits and stirs the passions of all men who meet her.

A college friend with whom Rachel shared an embarrassing and passionate moment shows up at Central Perk; Chandler and Ross argue for possession of Val Kilmer's tuxedo; Joey drives Monica crazy over the wedding schedule.

With only four weeks until their wedding, Monica and Chandler try to write their vows; Chandler enlists the boys' help, while Monica does the same with the girls.

Trying to ensure an ideal wedding, Monica arranges a meeting so Chandler and his estranged father can reconcile.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski).

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is aboard the train they are taking to San Francisco.

Penny's home business turns into a complete nightmare when Sheldon takes over.

Penny develops a rivalry with a sexy new female neighbor who threatens her position as queen bee of the building.

Wolowitz and Leonard decide to check out a local bar on Ladies' Night.

Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon is forced to bunk with Penny when he gets locked out of his apartment.

Penny makes a surprising revelation about Leonard while on her date with Stuart; Wolowitz finds a critical design flaw in his NASA project.

While Leonard prepares for a three-month science expedition, he and Penny re-evaluate their feelings for each other.

After tampering with Sheldon's Arctic-expedition data, the guys follow him back to Texas, which threatens Leonard's chances for romance with Penny.

Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.

Howard and Raj hit a Goth nightclub to meet women; Sheldon tries chocolate-based behavior modification on Penny.

Raj faces deportation if he does not find a job; Leonard and Penny deal with Howard as a third wheel.

Sheldon seeks revenge on his nemesis, Wil Wheaton; Wolowitz wants Penny to set him up with one of her friends.

Employees take some big gambles when they host a charity casino-night in their warehouse.

Michael unintentionally outs a gay employee; the situation with Jim and Pam.

Michael organizes a party in his hotel room when he, Dwight and Jan attend the Northeastern Mid-Market Office Supply Convention in Philadelphia.

After Jan busts Michael for having a "movie Monday," Angela pushes Dwight to make a play for Michael's job.

Michael tries to help the staff grieve after learning that the former regional manager has died.

Dwight takes Ryan on his first sales call, subjecting him to an outrageous series of tests along the way.

Michael urges the staff to support Kelly and attend a local celebration of the Hindu Festival of Lights.

Michael strives to keep the staff's spirit up after learning of the Scranton branch shutting down; people envision how their lives will change.

Old friends Jim and Pam are back together after months apart as the Scranton branch and Stamford branch are finally merged.

Michael tries to be supportive after learning that a new employee is an ex-convict; the staff compares the office to a prison.

Strife on the party-planning committee results in two competing Christmas parties; Michael gets dumped for the holidays.

Strife on the party-planning committee results in two competing Christmas parties; Michael gets dumped for the holidays.

Michael returns from his Jamaican vacation; an e-mail of a racy vacation photo makes the rounds of the office.

Claire senses Phil may be more into "Juliana" than her; Gloria's sister visits; Mitchell and Cameron get into a situation with Anders.

Claire takes a first class seat on a flight, leaving Phil in coach; Gloria makes Jay teach Manny how to defend himself; Mitch, Cam and their friends throw Sal a belated baby shower.

While stuck at the airport, Claire partakes in online snooping that creates drama with the rest of the family.

Sheldon helps his roommate try to beat the stock market; Missy and Billy Sparks throw a party; Mary finds a new church.

Georgie and Mandy's wedding plans pit Mary against Mandy's mom, with baby CeeCee caught in the middle.

Georgie and Mandy get married.

Sheldon studies to be Meemaw's lawyer when she is put on house arrest; the Coopers have a plumbing emergency.

Sheldon's published paper leads to a frenzy of grad school recruiting; Georgie tries to speak more properly in front of his daughter.

Meemaw gets assigned a tough probation officer; Georgie takes marriage advice from his father-in-law.

Ross tries to find Chandler with Phoebe's help; Rachel tries to hinder Monica.

The reception following Monica and Chandler's wedding is almost upstaged by the news that a member of the group might be pregnant.

The gals speculate about the father of Rachel's baby, the guys scramble after Chandler loses the film from his wedding.

The real father of Rachel's baby is revealed; Monica and Chandler struggle to make their honeymoon flight.

Ross and Rachel argue over how they ended up in bed together weeks earlier, so Ross announces he has the encounter on tape.

Ross is horrified when Rachel goes on a date with a soap-opera star (Johnny Messner); Phoebe is attracted to a clumsy chef whom Monica wants to fire.

At Monica's Halloween party, Phoebe meets her twin sister's fiancé and finds that she is attracted to him.

Rachel wants to find her own apartment; Phoebe is ecstatic when Eric (Sean Penn) dumps Ursula to date her.

Chandler finds out that Monica had a bachelorette party, even though they promised not to have parties; Rachel takes Phoebe along to dinner with Rachel's dad, because she is afraid he will be angry when she tells him she's pregnant.

Monica encounters a high-school friend (guest star Brad Pitt) and invites him to Thanksgiving Day dinner.

Chandler is aghast when Monica buys expensive boots; Phoebe discovers that Ross' son attends school with Sting's son.

Ross' new girlfriend wants to put their photograph on Christmas cards; Rachel eyes Joey as a possible partner.

Sheldon teaches Leonard how to understand football; a kite-fighting incident threatens Howard and Raj's friendship.

Sheldon tries to make peace when Leonard and Penny get into an argument.

Penny is forced to rely on Sheldon when she is injured while Howard, Leonard and Raj are away.

After being humiliated on the radio, Sheldon vows to destroy Kripke; Wolowitz tries not to ruin his new relationship with Bernadette.

Sheldon tries to help Penny understand Leonard's work; Wolowitz gets jealous when Leonard starts hanging out with his new girlfriend.

Leonard is horrified when his mother (Christine Baranski) visits.

Sheldon and Koothrappali attend a university mixer; Leonard discovers that Penny believes in psychics.

After their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.

All Elite Wrestling continues to inject new spirit, freshness and energy into mainstream wrestling featuring a world-class roster of diverse male and female wrestlers.

Andy suggests that Michael team up the staff for sales calls; Dwight tries to cover for Angela when she misses a deadline.

Oscar returns from his long vacation; Andy takes advantage of events to get closer to Michael; Jim gets Karen and Pam to help stage a prank on a new target.

Michael brings two adult performers into the office in honor of Phyllis' wedding shower; Karen confronts Pam about her past with Jim.

Phyllis regrets giving Michael an important job at her wedding; Dwight plans to catch wedding crashers.

Ryan invites Michael to be a guest speaker at his business school; Dwight battles a bat that is loose in the office; Pam invites co-workers to her first art show.

Michael and Jan make their relationship public during a party; Jim meets Karen's ex; the staff goes to happy hour for drinks.

Darryl meets with Michael to negotiate a pay increase; Jim deals with the consequences of Pam's confession to Roy.

Andy returns from anger-management classes, planning to make a fresh start with his co-workers; Michael and Dwight try to illustrate the dangers of the workplace.

The staff goes into crisis mode after a shipment of paper goes out with an obscene watermark; Michael holds an impromptu press conference; Jim and Andy handle harried clients who used the paper.

Outrage breaks out in the office when Phyllis gets an eyeful from a flasher; Dwight and Andy work on catching the perpetrator.

Michael must recommend his own replacement when the company considers him for a corporate position; Pam must watch Jim and Karen have fun together at a company outing.

Michael, Jim and Karen go to New York to interview for a job opening; in Scranton, the new regime institutes sweeping reforms; Jan brings exciting news.

Michael, Jim and Karen go to New York to be interviewed for a job opening; in Scranton, the new regime institutes sweeping reforms; Jan comes in with exciting news.

A freak accident causes Michael to think the office is cursed; Michael decides to hold a charity 5K fun run; further developments in co-workers' romances.

A freak accident causes Michael to think the office is cursed; Michael decides to hold a charity 5K fun run; further developments in co-workers' romances.

Joined by John Mayer, the Jokers must convince unsuspecting temps to accompany them to a business dinner; the losing Joker has to face the wrath of angry Mayer fans in a humiliating punishment.

Sal, Q, and Murr fall head over heels for someone they just met; a heated debate with pro wrestler MJF; a Joker discovers an untapped clairvoyant talent they possess with guest star Kesha.

A special episode hosted by Casey Jost and former NFL player Eddie Jackson as they spend time reviewing nail-biting clips of never-before-seen moments from Season 10.

George Sr. is worried that Mary wants another baby and gets a vasectomy behind her back; Dr. Linkletter and Dr. Sturgis go to Sheldon for science tutoring.

George Sr. gets an exciting job offer; Sheldon prepares for his move to California.

Sheldon leaves East Texas for the California Institute of Technology following the death of his father, George Cooper Sr.

Young Sheldon ends its seven-year run with a must-see two-episode series finale; Jim Parsons and Mayim Bialik reprise their roles as Sheldon Cooper and Amy Farrah Fowler in an unforgettable hour of television.

Sheldon learns that his high intelligence isn't always helpful growing up in East Texas, where church and football are king.

To appease his mother, Sheldon goes on a quest to make his first friend by following techniques in a self-help book.

Rachel and Joey might become more than friends; Chandler sets a Ms. Pac-Man record; Ross breaks land-speed records.

Joey might declare his love for Rachel, or Phoebe; Rachel breaks a pact with Ross; Chandler becomes mister bubble bath.

Joey realizes his intense feelings for Rachel are excluding Ross from the joys of impending fatherhood.

Monica prepares a memorable St. Valentine's Day for Chandler with sexy lingerie and X-rated entertainment.

Joey confesses his true feelings for Rachel; Phoebe introduces Monica to her new boyfriend (Harry Van Gorkum).

Rachel devises a lie about her unborn child that she hopes will break the silence between her and Joey; Phoebe reads tea leaves and predicts she will soon encounter the man of her dreams.

Phoebe brings her annoyingly upbeat boyfriend to the 35th anniversary of Monica and Ross' parents, who urge Ross and pregnant Rachel to pretend to be married.

When Soap Opera Digest requests an interview, Joey enlists his friends to make sure he does not say anything that could cost him his role.

During her baby shower, Rachel realizes she is unprepared to be a mother and accepts her mother's (Marlo Thomas) offer to move in to help with the child.

A food critic blasts Monica's cooking in a newspaper review; a cute saleswoman riles Rachel when she flirts with Ross; Phoebe coaches Chandler for a job interview.

Monica and Phoebe make a bet after Rachel passes her delivery date; Chandler falls asleep at the premiere screening of Joey's new film.

Rachel goes into labor, enduring endless pain while anxious Ross hovers nearby and her waiting friends wreak havoc in the hospital.

Sheldon tries to figure out the answer to a physics problem by working with Penny.

Leonard must choose who to bring with him when he goes to see the Large Hadron Collider on Valentine's Day.

Sheldon ends up in traffic court after getting a ticket because of Penny.

When the guys buy a ring from "The Lord of the Rings" at a garage sale, the item threatens to tear them apart.

Sheldon's stage fright stands between him and a coveted award.

Penny and Leonard have a fight that threatens their relationship; Sheldon and Wil Wheaton face off once again.

Sheldon goes to extremes to keep Leonard and Penny happy when they stop speaking to each other.

Sheldon invites a famous physicist to the apartment, and competes with Leonard for her attention.

Leonard tells Penny about how he met Sheldon and what happened to the elevator.

Raj and Howard set up an online dating profile for Sheldon and find the perfect woman.

Penny tags along on Sheldon's first date; Wolowitz finds a new use for a robotic arm.

Realizing he will not live long enough to download his consciousness into a robot body, Sheldon tries to extend his life span.

When Sheldon searches for an alternative to human companionship, the guys become concerned.

An embarrassing secret of Wolowitz's is revealed; Raj and Sheldon get into a war at work.

The Jokers are back as wacky inventors pitching a whole new line of AI-themed gadgets; they fill out bogus incident reports with unsuspecting deli customers; the loser will be forced to demonstrate mentally absurd and physically grueling apps.

The Jokers pretend to be bellhops and need to do and say what they're told while assisting unsuspecting guests to their rooms. Then, the guys need to give away tickets to an absurd made-up show they can no longer see.

Anthony Davis pranks former NFL tight end Marcedes Lewis when a routine valet drop-off turns into joyrides and errands; NBA coach Jason Kidd sends NBA player Cooper Flagg into a rookie symposium that devolves into awkwardness.

LeBron James and agent Rich Paul team up with Anthony Davis to prank NBA star Draymond Green with an ultra-exclusive investment opportunity, while Olympic gymnast Jordan Chiles traps WNBA star Rickea Jackson in a parking-lot nightmare.

Michael tries to combat his growing debt by asking employees for loans; Jim and Pam spend a night at Dwight's family farm.

Michael tries to combat his growing debt by asking employees for loans; Jim and Pam spend a night at Dwight's family farm.

Michael seizes the opportunity to exhibit his creativity when the Scranton branch must participate in a company ad; Dwight explores an online world.

Michael fights back when Karen tries to woo Stanley away from Scranton; a Finer Things Club further disturbs Dunder Mifflin's calm.

When Ryan excludes him from a wilderness retreat, Michael goes into the woods for his own survival adventure; Jim tries to revolutionize the office birthday party.

Jan sues Dunder Mifflin, and Michael is deposed as a witness; Kelly trash-talks Pam after Darryl beats Jim at ping-pong.

Pam and Jim run out of excuses and must go to Jan and Michael's house for dinner; when Dwight learns that Angela and Andy are also invited, jealousy gets the best of him.

A model in an office-supply catalog makes Michael feel things; to win back Dunder-Mifflin's parking spaces, Kevin and Andy oppose bosses of five businesses.

The Smiths try to plan a family game night, but Roger is full of excuses about prior commitments and gets caught in a lie.

Stan is legally separated from his favorite foods when Langley Falls implements a new ban on trans fats.

Claire won't let Phil buy a video game console; Jay and Gloria get into a disagreement over the types of toys Joe plays with; Haley wants to stand up for herself at work; Claire attempts to bribe the school principal.

When Alex learns she must share the Valedictorian title with a competitor, the principal lets them break a tie with a one-mile run; Gloria studies for her citizenship test; Mitch and Cam join a protest against a local restaurant.

George Sr. is rushed to the emergency room; Meemaw comes to baby-sit; the kids have an adventure getting to the hospital on their own.

Sheldon refuses to eat solid foods after a choking scare with a breakfast sausage; he discovers comic books for the first time.

Sheldon struggles with newfound popularity after utilizing statistics to help the football team.

Sheldon is shocked when a NASA representative at school dismisses his science; he becomes determined to prove him wrong.

Meemaw causes a feud when she refuses to give George Sr. her brisket recipe; the kids try to resolve the feud.

George Sr. takes the boys on a road trip to see a space shuttle launch; Mary, Missy, and Meemaw have a girls weekend at the salon.

After Rachel gives birth to her baby, she must confront relationship issues around her.

Joey finds himself engaged to Rachel soon after she delivers her baby girl, while Phoebe assumes Ross is the one who proposed; Joey sneaks a peek as Rachel tries unsuccessfully to nurse; Monica and Chandler retire to a supply closet for privacy.

Joey seeks forgiveness from Ross, while Rachel tries to quell Emma's incessant crying.

Emma's pediatrician drops her as a patient because of Rachel's constant calls.

Monica fears Chandler has a sexual fetish involving sharks; Phoebe fears losing her boyfriend.

While Phoebe and Joey wait at a fancy restaurant to celebrate Phoebe's birthday, Rachel is afraid to leave her infant with a babysitter; Monica and Chandler also fail to arrive on time after they fight over Chandler's urge to resume smoking.

Ross mocks Rachel's new male nanny (Freddie Prinze Jr.); Chandler becomes upset when Monica says that somebody from her job is the funniest guy she's ever met.

Chandler and Joey find a videotape while checking out Richard's apartment; Ross sings Emma an off-color lullaby.

Rachel has a bone to pick with her self-centered sister (Christina Applegate) on Thanksgiving; Monica protects her good wedding china; Joey forgets to join his TV cast mates for the Thanksgiving parade.

Rachel impulsively gives her telephone number to a handsome guy but worries he will call when Ross is there.

Monica fears the worst when she learns Chandler will be spending Christmas in Tulsa working on a deadline with a beautiful co-worker (Selma Blair).

Rachel crosses swords with her temporary replacement (Dermot Mulroney) at the shop; Phoebe wreaks havoc on the set of Joey's soap opera.

Leonard realizes he is the only one in his group without a girlfriend; Sheldon wants to get rid of his girlfriend.

Leonard keeps an affair a secret from Sheldon, Howard and Raj.

Sheldon's interview with the FBI jeopardizes Wolowitz's security clearance.

While the guys camp out for a long-awaited movie screening, Penny and Bernadette invite Amy to her first slumber party.

Penny asks Leonard to lie to her father (Keith Carradine); Howard, Raj and Bernadette pull an all-nighter at a telescope.

Amy realizes she has feelings for Penny's ex; Koothrappali and Wolowitz try to prove who would be a better superhero.

The guys try to bond with Penny's new boyfriend through a costume contest.

Leonard's idea for a smartphone application causes friction in his friendship with Sheldon.

Two detectives (Jackie Chan, Chris Tucker) battle a Hong Kong gangster (John Lone) and his henchmen after a bombing at the U.S. Embassy.

The assassination of Ambassador Han leads to the reunion of Lee and Carter. In Paris, the pair must stay one step ahead of Chinese gangsters and Lee's childhood friend, as they track down an envelope containing the identity of a powerful crime lord.

A Hong Kong detective and a wisecracking L.A.P.D. detective choose to work together to find the missing daughter of a Chinese diplomat.

Two detectives (Jackie Chan, Chris Tucker) battle a Hong Kong gangster (John Lone) and his henchmen after a bombing at the U.S. Embassy.