The ex-wife of a firefighter who married a rich Sept. 11 widow is suspected of murder.

A drug dealer is shot in a federal park and the team sets out to look for his killer; Maggie's sister returns to New York and complicates the case.

All eyes are on the team when it tries to find out who kidnapped the only child of a prominent U.S. senator; the abduction also uncovers a potential link to a similar case that was pushed to the side by local authorities.

After finding a group of teens dead from a drug overdose, the team races to find the dangerous dealer and his supplier; OA questions where he stands in his faith.

When a prominent doctor is found dead in a ritualistic slaying, the team must race against time to hunt down a religiously motivated serial killer; Scola faces a life-or-death decision.

When a bus explosion kills several innocent people, the team jumps into action to take down the responsible terrorist organization; Scola tries to balance fatherhood with the job.

After the president of the NY Fed is gunned down trying to help a young woman in peril, the team races to find the killer and the missing woman.

On election day, someone tries to create turmoil in the U.S. presidential election, and Team Scorpion is called to investigate.

While in Ireland for Megan's one-year memorial, Walter discovers a natural disaster at a nearby lake has created a poisonous cloud that threatens an entire village; Cabe and Toby try to ease the tension between Tim and Walter.

When Paige's estranged mother stumbles upon a forgotten nuclear reactor precariously close to exploding, she calls on the team for help.

Walter takes a perilous swim to rescue a woman trapped in the La Brea tar pits; Paige's mother maximizes Ralph's troop cookie sales.

Team Scorpion encounters gunrunners while spending Christmas Eve at an electronics-free mountain getaway; Tim makes a decision about his place on the team.

Team Scorpion is forced to freeze Cabe's body after he's seriously wounded by exploding shrapnel while on a mission in the desert.

Morgan brings the BAU new information in the case against Mr. Scratch, a serial killer and escaped convict who has been wreaking havoc on the team.

Agent Matt Simmons joins the BAU team in a race to take down Mr. Scratch and save one of their own in the process.

The BAU investigates three similar crimes in which victims' remains are discovered in old suitcases.

The BAU investigates a workplace shooting committed by a state-of-the-art drone in Silicon Valley.

When an anger-driven, unknown subject targets successful businessmen in Detroit, the BAU must investigate.

The BAU must find out what several missing women have in common to find them.

Morgan returns to the BAU to help Penelope deal with a case that has affected her emotionally.

The BAU searches for a subject who is targeting prominent members of the community.

The NCIS must come to the rescue of one of its own when Sebastian is kidnapped while dining in a restaurant with his mother; Sebastian relies on his gaming skills in a prison break.

The NCIS and the FBI investigate a private plane crash in the bayou that killed three sailors; Sonja and Lasalle interview candidates for a job opening on the team.

A Navy SEAL candidate is murdered weeks before his graduation; Wade seeks Pride's help when her adopted son announces his plan to join the Navy.

A sailor is murdered during a rowdy motorcycle rally in the city; Lasalle seeks personal advice from Gregorio.

When a local club owner is found dead, the team works quickly to find the motive behind the murder of a seemingly innocent man; OA is smitten with a new love interest but is concerned that she's mixed up with the wrong crowd.

When a federal judge is gunned down in broad daylight, the team is sent looking for a suspect with ties to a local Islamic center; Maggie reunites with a former colleague.

When the director of a Brooklyn migrant center is abducted and held hostage along with his wife, the team must work quickly to meet the demands of their kidnapper; Maggie picks Jessica's brain about motherhood.

After multiple people are targeted and killed with a poisonous gas in broad daylight, the team races to find the killer; Maggie continues to explore motherhood.

When a bombing at a local restaurant leaves several injured or dead, including a congresswoman and someone close to Isobel, the team races to apprehend the suspect before another explosive goes off.

After an employee of the U.S. Army is shot in an industrial park, the team works to track down the killer who reveals a larger plot at play; Tiffany continues to struggle with the guilt surrounding Hobbs' death.

When Team Scorpion is tricked into producing counterfeit cash for a foreign entity that intends to ruin the U.S. economy, Paige relies on her mother's skills as a grifter to save them.

Team Scorpion attempts to save a man stuck on the edge of a massive sinkhole that could permanently destroy the Los Angeles water supply.

Team Scorpion's job to find sunken treasure goes awry when Walter and Paige's boat explodes, leaving them lost in the middle of the Pacific Ocean surrounded by sharks.

Walter and Sylvester enter an international chess competition undercover on foreign soil in an effort to extricate a U.S. spy before her identity is exposed.

Happy, Sylvester and Cabe suffer from life-threatening, fear-based hallucinations after a simple mission to protect a vital seed bank goes awry.

Team Scorpion must move Happy's friend Ada, and the sterile bubble Ada lives in that protects her compromised immune system, to a secure location after a severe storm leaves the structure surrounded by dangerous debris.

The BAU is called in to investigate when a criminal sensationalizes his crimes by giving the local media exclusive footage.

The BAU is called to investigate when two members of a conspiracy group in Roswell, N.M., perish in quick succession.

When a series of backyard pool homicides are reported in California, the BAU team searches for an UnSub which has a puzzling past.

The BAU team's investigation into the home invasion and attempted homicide of a police chief's wife uncovers a world of secrets in a small town in Virginia.

The BAU is called to New York when several casualties of a brutal nature are reported in Central Park.

The BAU is called to investigate a series of homicides in which cryptic messages are found inside the mouths of the victims.

The BAU is called when the New Orleans Police Department discovers a mass grave inside a vandalized above-ground crypt in a local cemetery.

The FBI's assistant director of national security joins the BAU as it investigates the quadruple homicide of a group of roommates in St. Louis.

After a member of the United States Navy Band is murdered in her home, Pride looks after the victim's nephew, who is the only witness to the crime.

The NCIS team investigates when a Marine corporal who is an amateur race car driver is in a fatal crash on the track.

Pride needs to protect a family friend engaged to the prime suspect in an ongoing NCIS and FBI cartel case.

Sebastian goes under cover; Patton practices his old gambling skills; Pride and the team embark on a perilous plan to trap Garcia.

When a retired FBI agent is tortured and killed while working a security job, Scola and Nina go undercover as a married couple deep in the diamond game as the team tries to find out who is responsible.

After an FDIC security guard is killed while tending to a pregnant woman in distress, the team works to locate the woman and the killer who took her hostage; OA and Isobel worry about Maggie as she navigates taking care of Ella.

The team is thrown into a highly political case after four members of the Taliban are shot and one is kidnapped in New York with no record of their entrance into the country; OA struggles to open up to Gemma about his past in Afghanistan.

When a truck driver is murdered and the drug he was transporting goes missing, the team hunts for those behind the remaining batch that is already wreaking havoc on the streets of New York.

The Somalian terrorist group behind the death of Agent Hobbs resurfaces, sending the team on a chase to take them down for good.

After a bomb explosion devastates a residential apartment building, special agents Maggie Bell and Omar Adom "OA" Zidan of the New York office of the FBI investigate a possible war between rival gangs.

To stop a dangerous virus from spreading, Team Scorpion must locate an endangered monkey in the Amazon that has the antibody for the cure; Toby and Happy see a counselor to prepare for matrimony.

The team races to save Paige and Happy when a wire supporting the gondola they are in during a mission to repair a turbine at a wind farm snaps.

The team defies the orders of a foreign government when it retrieves an asteroid containing DNA strands that could have deadly consequences if they are exposed.

The team attempts to extract a pair of scientists trapped inside a failing and dangerous bio-dome designed for Mars.

After extinguishing a catastrophic tunnel fire, Team Scorpion helps Toby and Happy get to their wedding ceremony.

Team Scorpion has little hope for rescue after their plane crash-lands on a remote, deserted island while en route to Toby and Happy's honeymoon.

The BAU meets in secret to investigate a subject who appears to be kidnapping and photographing young women.

The BAU is called to Oklahoma to investigate a murderous clown who is terrorizing a town.

The BAU travels to Chicago to investigate a case where red roses are left on victims; Rossi gets an unexpected visit from his ex-wife.

The BAU takes charge of a hostage situation at a law firm where Matt Simmons' wife works.

The BAU is called upon when bioterrorism is suspected in a series of mysterious deaths; Garcia visits her stepbrother to take care of a difficult family issue.

The BAU is called to Taos, N.M., when someone targets victims' temporal lobes.

The team questions the credibility of a former FBI agent's bizarre account.

When Reid and Garcia are abducted by a mass murderer, it's up to the rest of the team to find them; the BAU looks to their past to solve why the two heroes have been targeted.

After Pride travels to a deep-sea oil rig for a murder investigation, the team uncovers a gas leak that's on the verge of causing a catastrophic explosion; Sebastian starts his NCIS special agent training.

After thousands of classified government files are stolen, the NCIS team searches for an underground group of hackers who were co-founded by Elvis Bertrand, Pride's old contact.

NCIS agents McGee and Torres head to New Orleans to partner with Pride and his team in the search for the missing homeland security theoretical terror playbook.

Painful memories come flooding back when a gruesome copycat murder leads to the reopening of a case for Wade.

After eight people are fatally poisoned at a deli in New York City, agents Maggie Bell and OA Zidan trace the crime to an unlikely culprit and conduct a sting operation to prevent further attacks.

Special agents Maggie Bell and OA Zidan join the team to investigate the murders of 18 young women, and they get help from a survivor associated with the deceased.

As the body count continues to rise, Maggie Bell and OA Zidan rush to track down an active sniper who has an elusive motive.

Maggie and OA investigate the death of a safety inspector and its possible connection to a leak at a nuclear power plant.

After a senator's daughter is kidnapped and held for ransom, the FBI must find the little girl before their time limit expires; they must dig into the senator's past for clues to who did this to his family.

Maggie and OA hunt down a ruthless group of robbers who are posing as police officers to target armored trucks.

The death of a prison gang member leads Fontana and Green to suspect the victim's former associates until they learn the deceased also had a running battle with a hard-nosed corrections officer.

Detectives investigate the deaths of two college students and find both were participating in a pharmaceutical company's secret testing program for an antidepressant that has resulted in many suicides.

An illegal firearms sting backfires when two officers are slain, and Green poses as a gun buyer to try to capture the killers, who were able to identify the officers via a Web site identifying undercover cops.

McCoy must determine whether charges should be filed in civil court or in criminal court when a novelist's death seems to have been caused by careless liposuction, but Branch finds a recurring pattern of negligence by the doctor.

McCoy takes the issue of gay marriage before the state's Supreme Court when he is unable to compel a man to testify against a crooked developer because the two say they are married.

The detectives proceed with skeptical caution when a radio personality, known to stage fake muggings for publicity, claims to have been shot and almost killed.

A philandering jeweler with ties to the Russian mob is one of four people shot to death on a sidewalk, and Fontana and Green learn the victim was cooperating with federal authorities until his murder.

After a bloody massacre of heroin dealers, Fontana and Green pinpoint a drug-dealing Afghan warlord as their primary suspect, and McCoy and Southerlyn prosecute despite pressure from the State Department.

Fontana and Green reluctantly investigate after a motorist strikes a child-murderer and leaves him for dead, and the evidence they uncover leads McCoy to a startling discovery.

When a wealthy venture-capitalist is found dead in his home, Fontana and Green zero in on the victim's young wife (Andrea Roth) and her contractor boyfriend (Daniel Sunjata).

Evidence in the shooting death of a rap legend seems to point to his young protege (Sean Nelson), who has been cutting his own music on bootleg CDs, so Fontana and Green listen for clues in the lyrics.

When nine flu victims suddenly die, Green and Fontana learn that all had been injected with a fake vaccine, which leads to the arrest and prosecution of a longtime con man.

When a controversial conservative talk-show host is shot to death, detectives sift through many possible suspects, eventually focusing on the man's widow and a woman who may have been stalking her.

A man strangled in his rent-controlled apartment leads detectives to the building's owner, who wants to convert the building to a co-op, but a basketball player's fingerprints are found at the scene.

Baby (Jennifer Grey) is one listless summer away from the Peace Corps. Hoping to enjoy her youth while it lasts, she's disappointed when her summer plans deposit her at a sleepy resort in the Catskills with her parents. Her luck turns around, however, when the resort's dance instructor, Johnny (Patrick Swayze), enlists Baby as his new partner, and the two fall in love. Baby's father forbids her from seeing Johnny, but she's determined to help him perform the last big dance of the summer.

M'Lynn (Sally Field) is the mother of bride-to-be Shelby Eatenton (Julia Roberts), and as friend Truvy Jones (Dolly Parton) fixes the women's hair for the ceremony, they welcome a helping hand from aspiring beautician Annelle Dupuy DeSoto (Daryl Hannah). Diabetic Shelby has a health scare, which is averted but doesn't bode well for her hopes of having children. Time passes, and the women and their friends encounter tragedy and good fortune, growing stronger and closer in the process.

The NCIS team investigates the murder of a musician in the Navy's most elite band.

The NCIS team investigates a petty officer's murder that was livestreamed on a popular gaming app; Gibbs watches his 11-year-old neighbor when his mom must leave on a last-minute trip.

Gibbs and the team assist Ziva with "the one thing" she said she would need to take care of before returning to see her family.

Gibbs must face the reality of his actions after he assists Ziva with "the one thing" she said she would need to take care of before returning to her family.

The NCIS team investigates an F-18 crash and the subsequent disappearance of the pilot; McGee reluctantly discusses a very personal decision with his teammates.

After a body is found at an unmanned aerial vehicle testing site, the NCIS team must determine if the death was murder or an accident; Palmer carefully interviews medical examiner assistant candidates.

Maggie and OA lead the search for an abducted former biological weapons chemist.

After a key witness and a U.S. marshal are ambushed and killed, Maggie and OA must find the man who leaked the information that led to their murders.

When an illegal arms broker-turned-informant is assassinated, OA assumes his identity and goes undercover to stop the sale of dangerous weapons, with help from Maggie and their former FBI instructor.

On one of trapped housewife Evelyn Couch's (Kathy Bates) Wednesday nursing home visits, she encounters Ninny Threadgoode (Jessica Tandy), a colorful old woman who brightens Evelyn's outlook by sharing tales from her past. As Ninny recounts the exploits of her free-spirited sister-in-law Idgie (Mary Stuart Masterson), owner of a small Alabama café in the 1920s, and the bond Idgie shared with her friend Ruth (Mary-Louise Parker), Evelyn gains the confidence to change her own life for the better.

M'Lynn (Sally Field) is the mother of bride-to-be Shelby Eatenton (Julia Roberts), and as friend Truvy Jones (Dolly Parton) fixes the women's hair for the ceremony, they welcome a helping hand from aspiring beautician Annelle Dupuy DeSoto (Daryl Hannah). Diabetic Shelby has a health scare, which is averted but doesn't bode well for her hopes of having children. Time passes, and the women and their friends encounter tragedy and good fortune, growing stronger and closer in the process.

Baby (Jennifer Grey) is one listless summer away from the Peace Corps. Hoping to enjoy her youth while it lasts, she's disappointed when her summer plans deposit her at a sleepy resort in the Catskills with her parents. Her luck turns around, however, when the resort's dance instructor, Johnny (Patrick Swayze), enlists Baby as his new partner, and the two fall in love. Baby's father forbids her from seeing Johnny, but she's determined to help him perform the last big dance of the summer.

Pride's longtime friend, state and military attorney Rita Devereaux, asks NCIS to investigate the disappearance of a JAG lawyer who specializes in classified cases and volunteers at a private military academy.

A highly skilled special operations Marine assaults six men in a bar, sending the NCIS team on a city-wide manhunt.

Tammy is reunited with her ex-husband, Ethan McKinley - who embezzled millions in Katrina relief funds - after he's tied to the murder of a crime boss' son.

A deadly accident at a naval base exposes a unit of Seabees to a super virus and leaves the rest of the base and the city of New Orleans at risk for an outbreak; Wade is infected with the virus and given hours to live.

Lasalle must investigate his former partner in the Vice unit after the NCIS team finds a link between an international drug ring and the New Orleans Police Department; Rita looks into a connection between the mayor and illegal activity in Clearwater.

Pride listens in on a wiretap of Mayor Hamilton; the NCIS team investigates when Navy weapons get stolen in a train heist; featuring musical performances by Sheryl Crow.

The murder of a Navy chaplain leads Pride to uncover a possible connection between Mayor Hamilton and illegal activity taking place in the city of Clearwater; Percy continues to face repercussions of her choices on a previous case.

After Torres and Bishop are victims of a hit-and-run, Torres fights for his life in the Intensive Care Unit.

The lead suspect in a murder investigation is a woman that Gibbs' friend met on a dating site; Sloane has a secret admirer on Valentine's Day.

The team tries to piece together how a retired Navy officer obtained a rare and valuable coin.

A Navy officer is murdered the same way his parents were murdered a decade ago; the team stumbles across a storage container filled with dollhouses that display re-creations of murder scenes; the team members agree to clean out their living spaces.

The body of a well-regarded Navy technician is found floating in a lake, which isn't far from where a popular community event takes place; Sloane's daughter makes an unexpected request.

When Kasie and Jimmy are held hostage in a diner after a jewelry store robbery goes awry, they attempt to keep the other customers safe from the thieves.

The team tries to verify the identity of Joe Smith, who claims he served on the U.S.S. Arizona during the attack on Pearl Harbor and wants to be buried there upon his death.

Gibbs and Fornell attempt to track down the leader of a drug ring who supplied drugs to Fornell's daughter; the team deals with the case of a missing cadaver from the NCIS autopsy room.

Flashbacks reveal the murder case that first introduced young Gibbs to NCIS and to Ducky.

The discovery of two dead bodies in a forest leads the NCIS team into the wild world of modern-day treasure hunting; Gibbs and Fornell get deeper into their search for the opioid kingpin.

McGee and his wife Delilah's Bahamian vacation turns into a high-stakes mission; Gibbs fears the worst when his search for Fornell leads to blood.

Following a tip about smuggled weapons, Bishop and Torres engage in a shootout in a former sheriff's residence that's now a historical site, only to find themselves locked in abandoned jail cells there.

The team tracks a serial killer when remains of numerous victims are found in the walls of an elderly couple's home; the hunt becomes urgent after the BAU learns the killer's specific ritual of when to strike; Rossi reconnects with his ex-wife.

Packages with gruesome contents are delivered to six people in the Washington, D.C.. area; Simmons and Kristy struggle to connect with their son, David, who is suspended from school for aggressive behavior.

Soon after the BAU steps in to help local law enforcement isolate a suspect for a murder, a second person who is related to the first victim is killed under similar circumstances; Prentiss is concerned about Garcia's behavior.

The BAU investigates a spooky local ghost story of the "Tall Man" and the clues it provides when two people go missing in the woods; a third person mysteriously surfaces the following day with limited details as to what happened to her friends.

The BAU investigates four murders along the eastern seaboard; the crimes become personal for Alvez when the team discovers there are ties to his time spent in pursuit of a notorious hit man; Alvez and his girlfriend decide to move in together.

The BAU races to capture the vigilantes behind a series of attacks taking place every 27 minutes in the nation's capital; Prentiss and Unit Chief Andrew Mendoza lead the effort to identify the vigilantes and what's motivating them.

The BAU investigates a double homicide and kidnapping in New Hampshire; Rossi's plans to elevate his relationship with Krystall don't go as planned.

A professor from Lewis' past tips off the BAU to an alarming number of overdose deaths of patients who just completed rehab.

Unable to trust anyone in New Orleans, the NCIS team calls in FBI Assistant Director Isler to help expose and stop Mayor Hamilton's sinister scheme.

While Pride remains on probation after his rogue takedown of the corrupt Mayor Hamilton, his team is closely monitored by a strict supervisor; the team must secretly investigate after the FBI takes the lead on a case involving stolen nuclear waste.

An erratic whistleblower who calls Pride her mentor kidnaps him to help her locate a serial killer targeting young women in the Gulf of Mexico.

The team joins forces with FBI Director Isler after a Russian operative with intelligence on sleeper agents disappears; Tammy partners with former sleeper agent Eva Azarova to assist in the disappearance.

The team investigates the copycat murder of an unsolved case from 150 years ago that spawned a legendary ghost story; Gregorio is spooked when the case is connected to a recent séance and a local medium.

Sebastian is placed on administrative leave after being questioned by the FBI about a foot chase; Pride and the team attempt to clear Sebastian's name.

McCoy and Borgia target the unlikely hero who pursued a mass murderer through the streets of Manhattan in a deadly car chase that left one dead and one injured.

A celebrity chef comes under suspicion in the murder of a TV network executive when Fontana and Green learn that the two were having an affair and the chef's cooking show was about to be canceled.

While investigating a woman's murder, Fontana and Green uncover a cult that encourages sexual relations with children, and Borgia determines to put away its mesmerizing leader (Deborah Hedwall).

A promiscuous lawyer ends up bludgeoned to death in her office, and detectives treat her former lovers as suspects until DNA evidence points to a co-worker.

Fontana and Falco (Michael Imperioli) must tread lightly when they discover links between a powerful police commissioner and the murders of an infamous porn actress and a maverick publisher.

The shooting of a Panamanian jockey sends Fontana and Falco into the colorful world of horse racing; they learn that the animal's owner used stolen funds for the purchase.

Fontana and Falco make an arrest after a blaze kills a firefighter; the discovery of a charred pistol leads them to reopen the investigation into an old murder.

A commuter train strikes an SUV parked on the tracks, leaving 11 dead; Fontana and Falco sift through the wreckage in search of clues until they find a depressed construction worker who claims he meant to commit suicide, not homicide.

McCoy and Borgia consider making a deal with an ex-convict in order to save an abducted five-year-old girl.

Fontana and Green seek the aid of Detective Olivia Benson; they discover a money-laundering scheme involving a mother-daughter team Benson had dealt with in a past case.

A criminal makes a startling deathbed confession; Detective Fontana reopens a 10-year-old case file concerning the murder of a 12-year-old girl.

Detectives investigate when a man is killed by a car bomb before he can disconnect his incapacitated wife's feeding tube.

Detectives learn that a murdered prostitute was actually an undercover reporter trying to expose a brutal gang.

A nurse practitioner with a social agenda faces charges when an abusive young mother accused of murder suddenly dies in her jail cell; detectives learn she may have been sterilized, without knowing it.

A single mother is killed, and her baby is stolen; police locate the child with a woman who took the infant while pretending to be pregnant.

Detectives link the owner of a trucking company to the smuggling of illegal aliens and suspect a citizen border-patrol member of his killing.

When detectives investigate a series of seemingly random murders, they find a hit list that includes Jack McCoy; he realizes the people on the list are jurors from trial of a multiple murderer he prosecuted years ago.

When Lt. Van Buren's college friend's daughter is found dead, she leads a no-holds-barred mission to catch the serial assailant who attacked her in the past.

When a judge and her daughter are murdered after she sentences a man to life in prison, Maggie and OA search for the killer; Dana has a history with the victim and a vested interest in the case.

When an alt-right provocateur is murdered after giving a speech at a university in New York City, Maggie and OA investigate the school's more extreme political groups and rely on OA's sister, a student, for help.

Maggie and OA must find a couple that is responsible for a spree of violent armed robberies that led to the death of an off-duty police officer.

After an investigative journalist is murdered, the team uncovers information linking the suspect to past cases; the victim's death strikes a chord with Maggie, leaving her desperate for answers in regard to a traumatic event in her personal life.

A serial bomber appears to be targeting Wall Street's elite; Maggie and OA search for a suspect who seems set on revenge; Dana deals with Spencer Briggs, a cocky profiler brought in to consult on the case.

The daughter of a wealthy family is kidnapped in an attempt to gain notorious internet fame; Maggie and OA discover the kidnapper's plans go far beyond abduction.

Tensions run high for members of Team Scorpion when they must overcome personal conflicts to be rescued from the desert island they crashlanded on three weeks earlier.

Team Scorpion must work with their old nemesis Mark Collins to prevent the extinction of mankind; Walter and Paige awkwardly navigate their new relationship.

Team Scorpion continues work with their nemesis to prevent humanity's extinction; Cabe's last-minute decision while on the case endangers his career.

When poachers almost kill a pregnant deer, the team tries to save the deer and the fawn; Happy and Toby discuss the future of their family.

While decommissioning an old nuclear missile, an accident causes the team to endure exposure to toxic vapor while trying to prevent the nuke from detonating; Paige confronts Happy about constantly tagging along with her and Walter.

While attending a tech convention, Team Scorpion is taken hostage by a group attempting a virtual heist.

Prentiss faces her past when the BAU is sent to investigate the murders of prominent businessmen, all of whom are missing their hearts; Prentiss plans a romantic first date with Mendoza, but the evening is cut short by an urgent call from Rossi.

The BAU team heads to Portland, Ore., to investigate a chilling abduction that may be linked to a local couple who were killed in their home a week earlier.

The BAU team flies to Iowa to investigate the disappearance of three 10-year-old children who appear to have been abducted from their homes, with surveillance video from a park as their only lead to finding the children's whereabouts.

Rossi questions his actions in the aftermath of a struggle with a serial killer who appears to have outsmarted the BAU.

The BAU investigates a string of murders taking place in supposedly haunted houses in Lewiston, Maine.

Rossi prepares to marry Krystall; the team investigates a series of fatal shootings following car accidents.

The BAU team investigates an unsub with striking similarities to Rossi's latest obsession, "The Chameleon."

The team searches for Everett Lynch and his daughter; Spencer has a meaningful visit with his mother.

The murder of a petty officer leads the team to a woman who is targeting men with high security clearance; Lasalle's father arrives to discuss the family business.

The team investigates after a clinical trial in which brain implants are put into veterans is hacked; Patton must work alongside his ex-wife, who spearheads the project.

Wade's son asks Pride for help after being attacked and discovering his girlfriend is missing; Pride must meet with a therapist to discuss his process for solving cases.

Pride starts to doubt evidence suggesting homeless kids murdered a petty officer.

Maggie and Dana struggle to find justice for victims murdered by a serial killer; the mayor limits the investigation to cut costs.

OA and Maggie team up with members of the FBI's Fugitives Department to track down a person wanted for murder who is also on America's Top 10 Most Wanted list.

The team must take down a dangerous drug ring after an American diplomat is killed while being used as a pawn; Jubal and OA try to help friends from their past fight off their inner demons.

When a controversial senior leader from Egypt comes to New York for a heart transplant, OA struggles to balance his personal opinion with his professional duty when he is assigned to the security detail.

After a decorated FBI agent is murdered, the team investigates and learns that the man led a double life; Maggie struggles with what information she should reveal to the agent's widow, who is also her personal friend.

A woman who has information about the death of Maggie's husband is abducted, leading OA and the team to uncover a criminal operation larger than anyone imagined; Dana puts her career in jeopardy when she allows Maggie to work on the case.

At Halloween, the team takes on a case to prove the existence of ghosts on the Queen Mary but find a ship on a deadly collision course; Walter considers taking note of Paige's interests to benefit their relationship.

A device that can prevent a nuclear meltdown is tracked through the Los Angeles sewers; Walter learns to listen and not offer advice to Paige; the team meets their new neighbor.

Team Scorpion visits a renaissance festival, but the revelry is cut short when a group tries to rob a nearby police evidence locker; Paige grows weary of Walter pointing out the historical inaccuracies at the festival.

Team Scorpion becomes stranded on a floating island of trash they were trying to destroy; Toby works with Cabe to uncover the details of his father's death.

Team Scorpion tries to help a father and his daughter when their plane crashes nearby; Paige helps Walter navigate his feelings about Cabe's possible future in prison.

The team anxiously awaits the verdict of Cabe's trial which could send him to prison; they use their nervous energy to try saving a dog stuck in a cistern.

The BAU team investigates a series of seemingly random fatal explosions throughout Kentucky and Tennessee.

The members of the BAU enjoy a Saturday off in vastly different ways; Rossi and Prentiss help Simmons assemble a new crib; Garcia leads a hacking competition; Dr. Reid strikes up a conversation with a woman named Maxine.

Following a series of fatal shootings, the BAU team travels to Illinois to investigate what appears to be a copycat serial killer.

After a father and daughter get kidnapped, a former foe of the BAU returns with very specific demands for Dr. Reid.

When the BAU team travels to Denver to investigate several murders, Prentiss is forced to evaluate her relationship with Special Agent Andrew Mendoza.

Prentiss and J.J. are faced with important decisions to make about their futures as the BAU travels to Texas to investigate a series of murdered businessmen.

Rossi develops some new theories about Everett Lynch, aka The Chameleon; the team sets out on an epic hunt to capture Lynch.

While hallucinating after he gets a brain injury, Dr. Reid is visited by ghosts from his past; the BAU makes a shocking discovery about Lynch that affects Rossi personally; the team comes together to celebrate Rossi's retirement.

Rita Devereaux tells Pride that Douglas Hamilton is about to make a deal to get out of prison; Pride and the team re-investigate the Clearwater case in hopes of spoiling his plans.

After a deadly armed robbery and high-speed chase is linked to an undercover ATF operation, Percy reconnects with her former ATF partner.

Sebastian's high school friend asks for help when her business partner is killed at a gaming convention; FBI Special Agent Raymond Isler believes Adrian is the hacker that the Cyber Crimes division has been tracking for years.

A petty officer's murder leads the team to a nightclub where Pride's mother used to perform; LaSalle must return home to Alabama after receiving an unexpected call from his family.

After a bomb detonates at a restaurant in Queens, the case becomes personal for OA, who grew up eating there; OA goes undercover to prevent another incident.

After the son of a prominent blogger is kidnapped, the team must sweep through her two million followers to find the culprit; Kristen continues to adjust to life as a field agent with her new partner Stuart Scola.

After a female presidential candidate, Valerie Caldwell, is targeted with a car bomb, OA and Maggie must find them before they strike again; the case leads them to wonder if she is being targeted for her political aspirations or something else.

After a shooting at a nightclub, it appears that the FBI may have ignored previous threats from a local white supremacist group; Kristen wrestles with her commitment to the bureau and her responsibility to her community.

A loving husband and father of two is kidnapped after accidentally getting involved in illegal dealings far beyond what he imagined; Jubal must make a difficult decision regarding his family and their future.

After a Wall Street investor is murdered, the team is led to an insider-trading ring that uses unconventional methods to gain information; OA struggles to maintain confidence in his budding relationship with Mona.

On Christmas Eve, Walter becomes unconscious after falling down the stairs and enters a dream world where Team Scorpion never existed.

The team must work with Toby's nemesis and his wife -- Toby's ex-fiancée -- when they are locked inside an artificially intelligent doomsday bunker that aims to kill them; Walter is distracted by a dream in which he married Florence instead of Paige.

Power is knocked out in Los Angeles, and the team must help a teen pilot and his girlfriend who are lost over the Pacific without any radio contact; Walter must look after a group of Ralph's classmates; Cabe tries to tell Allie that he loves her.

Team Scorpion must prevent an incoming tsunami from hitting a vulnerable nuclear power facility; Toby secretly helps his ex-fiancee retrieve her stolen identity.

On Valentine's Day, Team Scorpion must help a doctor and pilot who are trapped inside a helicopter; Toby and Happy wait for news on their fertility results; Sylvester realizes that he may have feelings for Florence.

The mental faculties of the geniuses of Team Scorpion are impaired while trying to prevent the creation of a black hole; Paige must simplify the science for them; Florence and Sylvester grow closer when she helps him with a special project.

The BAU interviews candidates to take the opening left by Kate's departure; the team tracks a serial killer who leaves behind evidence that indicates a person intent on revenge.

The team must find the person responsible for a sarin gas attack on a Los Angeles bus before a larger incident occurs.

The team suspects a jilted unknown subject is responsible when brides are murdered on the eve of their nuptials.

When a robbery-homicide leaves three restaurant employees dead, a cold case that occurred in the same town six years earlier could yield a lead.

A notorious street artist becomes a suspect when corpses are used in macabre graffiti art in Detroit; Dr. Lewis tries to balance work and her relationship with her fiance.

A murder in a Florida community of sex offenders results in a large number of possible suspects; a career opportunity could take Lewis away from the BAU.

Rossi's daughter, a journalist, investigates the disappearance of a college student; JJ comes back from maternity leave.

An unknown subject in Phoenix abducts people and deprives them of sleep; Garcia and Hotch deal with a threat from hit men.