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.

Armed with nothing but a hatful of dreams, young chocolatier Willy Wonka manages to change the world, one delectable bite at a time.

Finding out whether the team can make it as film directors; celebrity guest Paula Abdul hosts a dinner for her fans, and Sal is in attendance.

Sal, Q, and Murr are put to the test; first as TV producers, then as product inventors, while the losing Joker won't be tooting his own horn, celebrity guest Roy Wood Jr. will.

The Jokers must send bizarre texts and pose as security guards, doing and saying whatever they're told; the losing Joker will be part of an elf orientation hosted by guest star Michael Ian Black.

Michael has a difficult time accepting Sabre's new policies; Erin waits for Andy to ask her on a date.

The Sabre CEO visits the Scranton office and says either Michael or Jim must go back to being a salesman; Andy's Valentine's Day plan backfires.

When Pam's contractions begin, she and Jim try to wait things out as long as possible so they can have more time at the hospital; Michael anxiously awaits the baby's arrival; Erin makes Andy jealous when she has lunch with Kevin.

When Pam's contractions begin, she and Jim try to wait things out as long as possible so they can have more time at the hospital; Michael anxiously awaits the baby's arrival; Erin makes Andy jealous when she has lunch with Kevin.

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.

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.

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.

Sheldon petitions Wil Wheaton to appear on the new "Professor Proton" show, but Wil offers a role to Amy instead; Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.

When Bernadette won't go into labor, her friends try different tactics to get things started; Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.

Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy; Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.

Penny gets the opportunity to host Bill Gates at work when his company wants to partner with hers; Leonard, Koothrappali and Wolowitz do everything in their power to meet him; Sheldon thinks he is the victim of a prank.

Leonard decides to run against Sheldon for president of the tenants' association; Bernadette encourages Wolowitz and Koothrappali to find the owner of a drone after they find it in the backyard.

A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere; Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.

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.

Bestowed with the almighty powers of the gods, Black Adam's unique form of justice, born out of rage, is challenged by modern-day heroes who form the Justice Society: Hawkman, Dr. Fate, Atom Smasher and Cyclone.

A security expert must infiltrate a burning skyscraper, 225 stories above ground, when his family is trapped inside by criminals.

The Jokers mix it up at an after-dark social event, and try getting park-goers to sign up for bizarre subscriptions; the losing Joker gets into an unforgettable battle of the sexes with special guest Kim Fields.

The Jokers ask random park goers to watch their grandma while they make a quick errand, then a fake documentary interviews them; the losing Joker gets dressed as a clown and punished by the other Jokers and returning special guest, Eric Andre.

Anthony Davis pranks NFL linebacker Daiyan Henley with a lost-pet charity; pro-wrestler Sting pushes Darby Allin into a tense moral standoff.

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

Michael tries to impress Jo; Dwight causes trouble on Jim's first day back from paternity leave; Erin and Andy go on their first date.

Members of the sales staff let Sabre's new Sales Is King policy go to their heads.

Michael tries to impress one of Pam and Jim's friends; Erin and Andy try to keep their relationship a secret; Dwight reconsiders his contract with Angela.

Andy tries to make Secretary's Day memorable for Erin; Oscar circulates a viral video comparing Kevin's voice to Cookie Monster's.

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.

Monica invites Rachel's workplace rival (Dermot Mulroney) to her birthday party; Joey flirts with Emma's new nanny (Melissa George); Phoebe and Mike (Paul Rudd) take care of a litter of rats.

Monica exults in the applause she receives on karaoke night, unaware that the cheering audience can see through her blouse.

Joey and Phoebe conspire to send Rachel and Ross on disastrous blind dates; the ovulating Monica wants to get intimate with Chandler.

Joey stumbles upon a way to impress a famous actor (Jeff Goldblum) during an audition; Ross learns the identity of a long-ago mugger; Chandler accepts an internship at a shoe company.

Both Monica and Chandler secretly approach Joey for a loan; Phoebe invites Mike (Paul Rudd) to move in with her; Rachel baby-proofs the apartment.

Ross and Chandler trade barbed insults on their alma mater's Website; Phoebe's resolve not to call ex-boyfriend Mike (Paul Rudd) weakens.

The gang buys scads of lottery tickets for the multimillion-dollar jackpot; Rachel suspects baby Emma is on the verge of saying her first word.

Rachel's visit to a soap opera set inspires her to dream about Joey; Chandler takes Ross on a weekend getaway after Monica cannot take time off from work.

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

Sheldon's comic book store experience changes when writer Neil Gaiman puts Stuart's store on the map; friendships are threatened when Koothrappali takes credit for Penny's astronomical discovery.

Sheldon goes to Las Vegas to win money for science; Penny and Bernadette take Amy wedding dress shopping, but her terrible choice entangles them in a web of lies.

Sheldon's mother won't attend his wedding unless he invites his brother; the Wolowitz kids inadvertently infest Amy, Bernadette, Wolowitz and Koothrappali with pink eye.

When Amy's parents and Sheldon's family arrive, everybody is focused on making sure the wedding arrangements go according to plan -- everyone except the bride and groom.

Sheldon and Amy's honeymoon runs aground in New York; Penny and Leonard discover they are uncomfortably similar to Amy's parents; Koothrappali insults physicist Neil deGrasse Tyson and starts a Twitter war.

Sheldon and Amy go crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their wedding; Koothrappali decides to settle down and asks his father to arrange a marriage for him.

Life gets complicated when Stuart starts bringing his new girlfriend home; Penny and Leonard talk about starting a family; Koothrappali explores an arranged marriage.

When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard takes matters into his own hands; Bernadette and Penny take Raj's fiancée out to dinner to get to know her.

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.

A 28-year-old artist gets stranded in an expansive, untouched forest in western Ireland. Finding shelter, she unknowingly becomes trapped alongside three strangers who are stalked by mysterious creatures every night.

Steve accidentally transforms himself into Elvis, not Einstein, when an experiment flops; Carl and Harriette are appointed marriage counselors.

Richie's class takes a field trip to the police station with tour guide Carl trying desperately to keep the dull tour afloat; the class is impressed when he shows a criminal the dangers of his actions if he kills an innocent police officer.

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.

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.

Ross invites an attractive paleontologist (Aisha Tyler) to a rooftop "Days of Our Lives" party being thrown by Joey.

Monica and Chandler run into an old acquaintance when they secretly go to a fertility clinic; Ross helps Joey woo the same professor (Aisha Tyler) he wants to date.

Monica and Chandler interview unsuspecting candidates, hoping to find the right man to father their baby.

The gang heads to Barbados for a paleontology convention where Ross is the keynote speaker; David (Hank Azaria) prepares to propose to Phoebe, but ex-boyfriend Mike (Paul Rudd) is not yet out of the picture.

The gang heads to Barbados for a paleontology convention where Ross is the keynote speaker; David (Hank Azaria) prepares to propose to Phoebe, but ex-boyfriend Mike (Paul Rudd) is not yet out of the picture.

In Barbados, Monica, Chandler and Phoebe eavesdrop on their friends' passionate encounters; Monica styles her hair to look like a blowfish; Phoebe and Mike rekindle their romance.

Ross drinks too much alcohol at dinner with Rachel, Joey and Charlie; Frank Jr. (Giovanni Ribisi) cannot cope with his precocious triplets.

Rachel and Joey nervously anticipate their first real date; Monica and Phoebe try to avoid an obnoxious friend with a fake British accent; Ross emerges from a tanning booth with a two-toned appearance.

Rachel gets Monica and Chandler to delay their trip to Vermont for Emma's first birthday bash.

Rachel feels like her younger sister, Amy, is finally on the verge of making a major change in her attitude; in order to help Amy become a more responsible person, Rachel overrides Ross' strong protests and allows Amy to baby-sit Emma.

When Ross interviews with Charlie's ex-boyfriend (Greg Kinnear) for a prized grant, the doctor makes a shocking stipulation; Chandler lies about watching Joey's bizarre audition tape.

Monica and Chandler fuss over their apartment as they expect a visit from the adoption worker, Laura; Phoebe and Mike opt for a small wedding and donate the extra money to a children's charity.

When Amy doesn't have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she's available; Koothrappali doesn't want Wolowitz to join him in hosting a show at the planetarium.

When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party; Leonard is shocked when Penny doesn't remember their first kiss.

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.

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.

Pam and Jim work on their first joint sales pitch; Michael misreads body language; Dwight encourages Kelly to try out for the minority training program.

Michael thinks his girlfriend is cheating on him and asks Dwight to investigate; Andy becomes frustrated when no one takes his customer's complaint seriously.

Michael is surprisingly cheerful after learning bad news about Donna; new parents Pam and Jim have a hard time staying awake at the office; Dwight refuses to honor a contract.

When the press learns that Sabre's printers catch on fire, Jo tries to find out who the whistle-blower is.

Michael refuses to fire the new office assistant (Evan Peters) when people complain about his bad attitude; Pam tries to impress Jim by pulling an office prank.

Corporate forces Michael into counseling with Toby; Dwight seeks revenge after a shop owner snubs him; Pam tries to change her job title.

Andy invites the office to a play he is in, hoping that Erin will attend; Jim and Pam struggle with their incompetent babysitter.

Thinking he has herpes, Michael contacts all his ex-girlfriends; Andy holds a sex education meeting for the office.

Michael, Dwight and Jim set up a sting after a competing sales associate steals a client; Andy starts a band.

Michael freaks out when Darryl goes over his head and takes an idea to corporate; a Halloween costume contest puts the office in a competitive mood.

Michael invites the entire office to celebrate the christening of Pam and Jim's baby.

Erin and Gabe host a "Glee" viewing party; Michael is upset when people refer to Gabe as his boss; Andy becomes increasingly jealous.

Michael helps convince people to invest in Ryan's Internet company; trying to capitalize on Thanksgiving, Dwight creates a hay festival in the parking lot; a new policy prevents Jim from earning commission.

After Steve is threatened, Carl acts as his bodyguard; Eddie is hit on by his boss's daughter.

The Winslows see a counselor to discuss the family's tension and hostility.

Steve travels to Walt Disney World to participate in an inventors contest.

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.

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.

Monica prepares a Thanksgiving feast for the gang, then becomes enraged when everyone shows up late; Phoebe convinces Rachel to enter Emma in a baby beauty contest.

A prospective birth mother (Anna Faris) labors under a misconception about Monica and Chandler's respective occupations.

Rachel and Phoebe spot Chandler getting into a car with a mystery blonde; the friends reminisce about memorable moments.

Joey appears as a celebrity contestant on "$100,000 Pyramid"; Monica and Rachel hire an ungainly stripper for Phoebe's bachelorette party.

A blizzard causes Phoebe and Mike's wedding to spiral out of control; uptight Monica steps in as her friend's wedding planner, then drives everyone crazy.

Monica and Chandler show Erica the tourist sights; they learn their baby's biological father might be an unsavory character; Joey begs Phoebe to teach him how to speak French before an audition.

Rachel goes to a job interview at a restaurant and winds up sitting next to her current boss; Joey feels abandoned because Monica and Chandler are leaving.

Ross tries to win back Rachel's job with her former fashion employer; Phoebe tries to keep Joey from learning about his agent's death; Monica and Chandler make a horrifying discovery.

One of the guys becomes offended when Rachel does not give him the same goodbye she gives the others.

The six friends prepare to say goodbye and embark on the next chapters of their lives; momentous events and last-minute surprises.

The six friends prepare to say goodbye and embark on the next chapters of their lives; momentous events and last-minute surprises.

Monica's high-school friend visits after leaving her fiancé at the altar.

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.

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.

Major League Baseball pregame analysis.

From Progressive Field in Cleveland.

Major League Baseball postgame interviews, analysis and highlights.

Michael decides he must stop China before it takes over the United States; Pam threatens to move the company to a new building.

Michael is happy when Toby takes a leave of absence and corporate sends Holly Flax to fill in; Pam must plan a second Christmas party when Michael wants the party to be on the day of Holly's return to Scranton.

Michael is happy when Toby takes a leave of absence and corporate sends Holly Flax to fill in; Pam must plan a second Christmas party when Michael wants the party to be on the day of Holly's return to Scranton.

Michael readies himself for the news about Holly's relationship; Pam puts up a board for everyone to post their New Year's resolutions.

Holly and Michael turn Andy's business seminar into an improv challenge; Erin and Gabe compete in a board game battle.

Jim is forced to abandon Michael at a gas station after receiving an emergency phone call; Erin, Dwight and Holly search for Michael; Pam's art inspires a captioning contest that appears to offend Gabe.

Public displays of affection between Holly and Michael make everyone uncomfortable; Jim and Pam experience the aftermath of a bottomless champagne lunch; Andy tags along on Erin's romantic treasure hunt.

After 11 years of preparation, Michael is ready to debut his action movie.

Dunder Mifflin traveling salesman Todd Packer comes to the office looking for a desk job; Andy fights Pam for a new computer.

Michael decides to ask Holly to marry him; the office has a garage sale.

Everyone hopes to make good first impressions with the new manager, Deangelo Vickers.

Michael teaches DeAngelo (Will Ferrell) how to host the Dundie Awards; Erin struggles with her feelings for Gabe.

Michael wants a drama-free day to say goodbye to his friends; Deangelo and Andy work to keep Michael's most-important clients.

Michael wants a drama-free day to say goodbye to his friends; Deangelo and Andy work to keep Michael's most-important clients.

Deangelo plays favorites by creating an inner circle of most liked employees, and the women notice it seems to be all guys.

Steve must tell Myra that he plans to marry Laura; Eddie and Waldo lose their way.

Steve and Carl face off in a dance contest; Laura dates Waldo's friend.

Urkel's genetically engineered termites escape after he moves in with Eddie and Waldo.

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.

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.

Monica begins to feel the heat when she prepares dinner for her parents (Elliott Gould, Christina Pickles).

Monica finds it difficult to break up with her latest boyfriend (Geoffrey Lower), whom everyone likes; Chandler starts smoking again; Phoebe receives a large sum of money.

While the men attend a hockey game and end up at a hospital, the women spy on President Clinton's top aide, George Stephanopoulos, who lives across the street.

Chandler and Phoebe plan to dump dates on the same night at the same coffee house.

An agent (June Gable) offers Joey a movie role as Al Pacino's naked body double; Chandler dates a liberal woman (Sofia Milos).

Chandler finds himself trapped in an ATM vestibule with model Jill Goodacre during a city-wide power failure.

Monica and Ross share their feelings about death and their grandmother.

Monica and Ross cook Thanksgiving dinner for themselves, but everyone else shows up.

The friends renege on a promise not to bring dates to their New Year's Eve party.

Chandler learns details about his mother's (Morgan Fairchild) life when she appears on national television.

Rachel's Italian boyfriend tries to seduce Phoebe; Rachel accidentally reveals a secret to Ross; Monica's aunt refuses to take the lasagnas she ordered.

Phoebe's psychiatrist boyfriend (Fisher Stevens) annoys her friends with his analyses of their lives.

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).

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

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.

Programming to be announced.

Dwight uses his position as acting manager to employ harsh policies in the office; Gabe tries to get Erin back.

Jim heads a team that interviews applicants, including several co-workers; Dwight tries to reassert himself as a contender.

Jim heads a team that interviews applicants, including several co-workers; Dwight tries to reassert himself as a contender.

The staff go into frantic speculation after accidentally discovering a list of their names in a notebook belonging to the mysterious new CEO.

The Scranton branch staff are challenged to double their sales; Andy decides to create an incentive program, but might end up regretting his promise.

After the warehouse employees win the lottery and quit their jobs, everyone in the office fantasizes about winning big; Darryl and Andy look for new warehouse workers.

When Andy decides to throw a garden party at Schrute Farms to impress Robert, Dwight researches how to be a good host; Andy's family makes him feel self-conscious.

Erin tries to put on a Halloween party that will please both Andy and Robert California; Jim and Pam fight about the existence of ghosts; Dwight bonds with Robert California's son.

Dwight installs a device in the office that will get everyone fired if they make too many errors; Gabe takes a liking to an employee at the warehouse.

Pam teams up with Dwight to prove that Jim thinks her temporary replacement is pretty; Robert California asks to join Andy, Darryl and Kevin's band.

Andy tries to motivate the staff by taking them on a field trip to Gettysburg; Robert asks those who stay behind to come up with the company's next big idea.

Robert California brings his wife (Maura Tierney) into the office to find her a job; Dwight opens a gym in the building.

Andy tries to make holiday wishes come true; Robert decides to drown his sorrows at the office party.

Steve accidentally shrinks himself and Carl in his transformation machine.

Naked Laura and Urkel unexpectedly meet in the shower.

Urkel, fearing Myra's jealousy, hides his attraction to a fellow bug collector.

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.

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.

It's Valentine's Day and, out on his first date in nine years, Ross meets up with his ex-wife; Monica, Phoebe and Rachel rebel against the spirit of the day by burning mementos of past relationships.

A "high-spirited" restaurant owner wolfs down the gourmet meal Monica created as part of a job interview.

Joey asks Phoebe's sister (Lisa Kudrow in a dual role) on a date; Ross takes Lamaze classes with Carol (Jane Sibbett) and Susan (Jessica Hecht).

Monica takes Rachel to the hospital; Ross asks his dad (Elliott Gould) for advice on becoming a father.

When the girls lose money to the guys in a poker match they seek out Monica's Aunt Iris, a famous card player, for lessons and then demand a rematch.

Rachel accidentally lets Ross' pet monkey escape, and the friends form a search party; she is then horrified to learn that her former best friend is engaged to her ex-fiance.

Rachel is asked to be the maid of honor in her ex-fiance's (Mitchell Whitfield) wedding.

Monica, Rachel and Phoebe go on a covert operation to track down the woman who stole Monica's credit card.

Monica's new boyfriend (Stan Kirsch) exposes his own secret after she admits her true age.

When Carol gives birth, Ross and Susan almost miss the event; Joey befriends an unmarried pregnant woman.

Rachel discovers Ross' feelings for her when he goes out of town on a business trip.

Rachel decides to look up her former boyfriend (Cosimo Fusco) when she is distraught over Ross' new girlfriend (Lauren Tom).

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.

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.

Andy gets the office involved in a trivia contest; Dwight explores job opportunities at Sabre headquarters.

When Robert decides to sell his mansion, Kevin suggests he throw a pool party for the office; Erin flirts with Dwight to get Andy's attention; Robert gives a tour of his home.

When Jim returns from jury duty Dwight questions him about the case; Angela and the senator welcome their new baby.

When Dwight receives a special assignment in Tallahassee, he and Andy must decide which Scranton employees will go with him; Pam returns from maternity leave.

In Tallahassee, Fla., Dwight tries to impress Sabre's special projects president; Andy tries to avoid requests for raises.

Dwight and Packer compete for a job; Jim receives an unwelcome visitor; Andy has everyone stay late to cover for their co-workers in Florida.

Dwight tries to impress Nellie with a theatrical presentation at the Sabre store opening; Andy suffers from an embarrassing injury.

After Robert reveals his contempt for Nellie's (Catherine Tate) business plan, Jim tries to save Dwight's job; Andy discovers that Erin isn't returning to Scranton.

Andy drives across the country to get Erin; Nellie shows up and tries to claim the manager position.

Robert forces the office to throw a welcome party for Nellie; Erin helps Andy practice how he will break up with Jessica.

After returning from his romantic quest, Andy battles with Nellie for the manager's chair; Kelly has a difficult time choosing between Ryan and a perfect man (Sendhil Ramamurthy).

Andy crashes a fundraiser and ends up adopting 12 dogs; Dwight learns that an auction winner loses money; Nellie learns how to eat a taco.

While Francine is away visiting her parents, Roger has a party at the house; Steve tries to lose his virginity to Carmen Electra.

The Smith family gets ready to celebrate Roger's 1,600th birthday, but gets sidetracked when Steve announces that he's going through puberty; Roger tries to make his own birthday fun when he gets the shaft from the family.

Jay has grown children, grandchildren and a gorgeous young wife, who has a preteen son of her own; all together they must bridge generational, cultural and social gaps.

Jay and Gloria have a disagreement about Manny's choice of outfit for his first day back at school; Cameron and Mitchell freak out when Lily gets a bump on the head.

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.

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

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.

While tending his son, Ross expresses his displeasure when Phoebe tastes Carol's breast milk to check the temperature.

Monica and Rachel's grumpy downstairs neighbor (Larry Hankin) dies and leaves all his belongings to the girls.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

The group's plans of throwing a birthday party are marred when money becomes an issue; Monica gets a promotion; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

A drunken Rachel leaves a phone message for Ross that may change their relationship; Chandler regrets asking Monica to help him lose weight.

Rachel sees Ross' list comparing her pros and cons to Julie's (Lauren Tom).

Phoebe, hoping for a Christmas family reunion, travels to upstate New York in search of her biological father.

After deciding to give up acting, Joey is offered a role in a soap opera; Rachel dates a guy named Russ, who is amazingly similar to Ross.

Ross helps put Carol and Susan's wedding plans back on track; Rachel's mother announces shocking new plans.

Joey starts dating a fan (Brooke Shields) who is gorgeous, but soon discovers that she's also crazy; Ross is reminded how much he misses his pet monkey and travels to the San Diego Zoo to find out what has happened to him.

Ross (David Schwimmer) catches up with Marcel on the set of a movie starring Jean-Claude Van Damme; Chandler gets a date with a girl he liked in fourth grade.

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.

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.

Programming to be announced.

Programming to be announced.

Dapper Danny Ocean organizes a gang to steal $150 million from three Las Vegas casinos in a single heist.

Danny Ocean and his gang hatch an ambitious plot for revenge after ruthless casino owner Willy Bank double-crosses Reuben Tishkoff, Danny's friend and mentor.

Programming to be announced.

Programming to be announced.

Andy tries to jumpstart his comeback; after Robert drunkenly shuts down a local branch, Jim and Dwight join forces in hope of outsmarting a salesman.

A former boss helps Andy go undercover and stage a coup; a new opportunity arises for Robert.

Two new, young employees throw Dwight and Jim off balance; Andy returns from leadership training with a desire for revenge.

Monica's parents drop off some childhood keepsakes including her prom video.

Ross and Rachel finally sleep together; Monica becomes infatuated with one of her parents' friends for whom she caters a party.

Monica's parents find out about her middle-aged boyfriend; Chandler and Joey argue, and it could mean the end of their living arrangement.

Joey wants to move back in with Chandler, but there's a new problem; Phoebe tapes a rock video; Ross upsets Monica.

Monica and Richard experience the same romantic problems as Rachel and Ross; Joey's ill-advised comments to a fan magazine threaten his acting career.

Chandler wants his annoying new roommate (Adam Goldberg) to move out; Joey is facing some exorbitant bills; the girls learn from a book about personal empowerment.

Monica's boyfriend proves to be the life of the party when he attends a basketball game with Chandler and Joey.

Two bullies (Peter DeLuise, Nicky Katt) banish Ross and Chandler from Central Perk; Monica plays the stock market.

Rachel's separated parents (Marlo Thomas, Ron Leibman) unexpectedly attend her surprise birthday party.

Phoebe's romantic meeting with an old friend (Charlie Sheen) is stalled by a case of the chickenpox; Ben celebrates his first birthday; Monica frets about her relationship with Richard (Tom Selleck).

Rachel is a bridesmaid at her ex-fiancé's wedding; she has flashbacks of her own failed wedding day; Monica and Richard's relationship is jeopardized when the subject of children is discussed.

Monica is distraught after her break-up with Richard; Chandler and Janice begin seeing each other again; Ross tells Rachel and Chandler about his "Princess Leia" fantasy.

In a race against the clock, Ross tries to get the gang dressed and ready for a black-tie benefit at the museum.

Phoebe dates a man who thinks he's stalking her twin sister, Ursula; Ross and Rachel give Chandler "boyfriend" lessons.

Chandler tries to get over his fear of commitment; Phoebe poses as Joey's agent after she forgets to tell him about an audition.

Phoebe tries to bond with her half brother, Frank Jr., by offering to buy a massage; Ross spots Isabella Rossellini; Joey tries to build an entertainment center.

Dapper Danny Ocean organizes a gang to steal $150 million from three Las Vegas casinos in a single heist.

To pay back casino boss Terry Benedict, Danny Ocean and his team of criminals plan an elaborate heist in Europe.

Danny Ocean and his gang hatch an ambitious plot for revenge after ruthless casino owner Willy Bank double-crosses Reuben Tishkoff, Danny's friend and mentor.

To pay back casino boss Terry Benedict, Danny Ocean and his team of criminals plan an elaborate heist in Europe.

A security expert must infiltrate a burning skyscraper, 225 stories above ground, when his family is trapped inside by criminals.

A toast at Roy's wedding leads to Pam and Jim searching their relationships for buried secrets; Dwight reacts to Nellie's mandatory charity initiative.

As Andy flaunts a discovery he made about his ancestry, Darryl struggles in his new role; Dwight teaches a language to Erin, who wants to impress her boyfriend's educated family; Jim reveals a secret.

When Jim convinces Dwight the building is unsafe, Dwight rents a bus to use as his office; Nellie asks for Andy's help; Jim uses pie to cheer Pam.

Andy invites his old a cappella group to perform for Halloween, which leads to a confrontation with his frenemy; Dwight tries to track down a madman in the office; Jim and Pam fight over his new job.

Claire and Phil decide to plan the biggest and best birthday party for Luke.

An unexpected reality check dampens Jay's plans for relaxation; Phil wants to make the trip romantic for Claire; the kids get into mischief when left to their own devices.

Claire and Phil worry when they learn Luke has befriended their cantankerous old neighbor; Jay tries to avoid attending a symphony concert with Gloria and Manny; Haley baby-sits Lily.

Claire and Phil embarrass Haley when they drop her off at college; Manny makes Gloria and Jay take a class; Lily gets into a tussle on her first day of kindergarten.

Phil and Claire try to orchestrate a kid-free week during Luke, Haley and Alex's summer activities; Cam and Mitch try to have a memorable summer.

A series of crises on Mitch and Cam's wedding day put Pepper to the test; Phil gets an eye procedure before the celebration; Claire embraces the role of best woman.

Chaos forces Mitch and Cam to move from one contingency plan to another, but an unexpected turn of events allows the day to move forward.

Mitch and Cam fight the effects of sleeping pills while rushing to catch a flight; Haley and Rainer re-evaluate their relationship; Phil and Claire meet Alex's new boyfriend when they pay her a surprise visit.

Mitch's ex-boyfriend, a personable and successful doctor, invites the whole family to a fundraising event at a roller rink; Phil teaches Gloria how to skate; Haley helps Alex talk to boys.

Phil gets a new RV for a fun family road trip; Jay and Gloria search for Manny's backpack; Lily's gymnastics meet brings out Cam and Mitch's competitive spirit.

When Janice asks the gang if any of them have ever slept together, the friends flash back to three years earlier.

Joey sees Janice kissing her husband, whom she is divorcing while she dates Chandler; Rachel's father clashes with Ross.

Chandler is devastated after Joey tells him he saw Janice kissing her ex-husband; Monica accidentally bumps Ben's head into a post when she and Rachel babysit; Phoebe is paranoid if she goes to dentist someone she knows will die.

Emotions become the feast of the day when the gang plays a game of touch football on Thanksgiving; the turkey is left stewing when the losing team calls for a rematch.

Rachel wonders if she'll ever get another job after she quits Central Perk; Joey's new job selling Christmas trees upsets Phoebe; Ross accidentally breaks a little girl's leg.

Ross is suspicious about Rachel's possible job offer from a good-looking stranger (Steven Eckholdt); Chandler can't remember which of Joey's many sisters he kissed at a party.

Ross becomes jealous when he hears Rachel's new co-worker (Steven Eckholdt) whispering sweet nothings to her.

Running into Richard at the video store tests Monica's willpower; Joey agrees to read "Little Women.".

Phoebe's ex-singing partner wants to make Phoebe's signature song, "Smelly Cat," a commercial success; Chandler dates a woman with a handicap.

Phoebe can't communicate with her new boyfriend, a UN diplomat who doesn't speak English; Ross seeks solace at a party after a bitter fight with Rachel.

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.

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

A lethal CIA agent (Dwayne Johnson) and his former classmate (Kevin Hart) encounter shootouts, espionage and double-crosses while trying to save the U.S. spy satellite system.

The manager (Danny Glover) of the lowly California Angels puts his faith in a boy (Joseph Gordon-Levitt) who can see an angel.