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.

A petty officer is murdered while in town to help a refugee family; Wade works on the special election campaign for Mayor Zahra Taylor that takes place during Mardi Gras.

FBI Special Agent Raymond Isler asks Pride for help with an off-the-books opioids theft investigation he is personally invested in; Percy works undercover as a getaway driver, with Isler as the muscle for a job tied to the case.

A congressional aide disappears after a hit man saves her from two men posing as NCIS agents; LaSalle struggles with life-altering decisions regarding his brother's future.

The team investigates the murder of a Navy captain who was searching for a priceless 200-year-old fleur-de-lis during the annual Louisiana Pirate Festival.

When a board member of a soon-to-be-public medical tech company is murdered, the team tries to find out who had the most to gain from his death; OA is conflicted when pressure to help a family member is at odds with his commitment to tell the truth.

A car crash results in the death of a photographer; Maggie sympathizes with his widow when she notices similarities with her own husband's death.

After an altercation with a student, teacher Patrick Miller goes missing, leading the team to investigate everyone who might have had a grudge against him; a key witness in the case steps up to help.

A former kidnapping victim is linked to a series of murders that includes the daughter of an NYPD detective; Kristen begins to doubt her ability as an agent after a training exercise leaves her shaken.

After a businessman with a history of harassment claims against him is killed, the team suspects the killer may be one of his many accusers.

A bank holdup leads the team to a safe deposit box, the contents of which have the potential to destroy national security; Kristen is eager to get back into field work while other team members still have their concerns.

Religious tempers flare when a man is killed after desecrating a treasured edition of the Hebrew Torah.

An officer exacts revenge upon his friend's alleged killer and tries to avoid prosecution by threatening to expose tainted evidence from previous cases.

Though a journalist's death in a bathtub looks like suicide, hand marks on his shoulders and pills from an ex's prescription suggest foul play.

A promising Hispanic student at a specialist school is strangled; Fontana and Green soon learn the victim was selling test answers and writing papers for more privileged students.

A woman says she killed her teenage son out of fear that he would follow in his criminal father's footsteps.

A murder victim, a young banking associate, has hundreds of thousands of dollars in a checking account, which may be a clue to the case.

Detectives believe vengeance is the motive for the shooting of a private military contractor, found dead in his hotel room.

A bank executive must assist in a robbery in order to save his kidnapped daughter.

A diner shooting leads detectives Fontana and Green to a desperate gunman seeking revenge for the death of his baby sister of AIDS at a children's hospital.

A newspaper reveals the identity of an undercover police officer, resulting in her murder, so Detectives Green and Fontana search for the source of the leak.

Detective Falco finds slashed to death in his bathroom the young woman he took home the night before.

McCoy risks his career when he uses a corrupt DEA agent (Ritchie Coster) to lure psychopathic killers out of hiding.

Tabloid photography may have played a role in a fatal burglary attempt; ADAs Jack McCoy and Consuela Rubirosa argue the use of shield laws to protect celebrity journalism.

An Internet photo of a murdered woman provokes a slew of 911 calls.

Pride, Sebastian and Tammy travel to South America after Pride is personally requested by a former colleague to assist with a classified operation that has been compromised.

Percy and LaSalle go undercover at a high-stakes poker game after the organizer targets players with access to a naval research laboratory; Laurel Pride visits her dad during spring break to discuss options after her upcoming graduation.

Pride and his bar patrons are held hostage by a group of volatile thieves.

Gregorio calls on her former behavioral science professor when the team's latest case matches one she studied during FBI training.

NCIS investigates the murder of a Navy officer who was killed while driving home a recently released inmate; Gibbs helps Palmer deal with a personal trauma.

When Sloane's name is discovered in Afghanistan at the site of an abandoned bus with a dead driver, Gibbs accompanies her on a trip to find a group of girls who were kidnapped from the bus; a hacker emails compromising information to the Taliban.

NCIS dives into the competitive world of food trucks after finding a man frozen to death in the back of one.

The team uncovers a secret dogfighting ring, which leads to an unexpected move by one of the team members.

Gibbs and Fornell's crusade to find the head of the drug ring responsible for Fornell's daughter Emily's overdose comes to a climax; Gibbs and Vance finally let the team in on a case that has dangerous implications.

Vance assigns McGee, Torres and Bishop to COVID compliance duty at a foreign affairs summit, where they discover a link to another NCIS team's murder case.

Evidence from the stabbing of a Marine sergeant leads Torres to meet his father, who left when Torres was a child.

The team investigates a biker killed in a hit-and-run; Gibbs prepares to testify against a financial adviser who stole millions from his Navy clients.

NCIS tracks a stolen laptop to the uncle of a young boy, Phineas, Gibbs' former neighbor.

When members of an NCIS Regional Enforcement Action Capabilities Training Team are killed during an explosion, NCIS Special Agent Jessica Knight, the lone surviving member, helps crack the case using high-tech body armor.

Danny Roman (Samuel L. Jackson) is considered the best police hostage negotiator in Chicago. After a friend warns him that someone is embezzling from a disability fund, the person is found dead. Internal affairs investigator Niebaum (J.T. Walsh) discovers the gun used had been handled by Roman. When no one believes his innocence, Roman takes Niebaum hostage. When Chris Sabian (Kevin Spacey) arrives to hear Roman's demands, the two skilled negotiators begin a tense stand-off.

Carl Lee Hailey (Samuel L. Jackson) is a heartbroken black father who avenges his daughter's brutal rape by shooting the bigoted men responsible for the crime as they are on their way to trial. He turns to Jake Brigance (Matthew McConaughey), an untested lawyer, to defend him. Brigance struggles to believe that he can get Hailey acquitted in this small, segregated Southern town, given Hailey's race and the deliberate nature of his crimes, but Carl has unshakable faith in him.

Danny Roman (Samuel L. Jackson) is considered the best police hostage negotiator in Chicago. After a friend warns him that someone is embezzling from a disability fund, the person is found dead. Internal affairs investigator Niebaum (J.T. Walsh) discovers the gun used had been handled by Roman. When no one believes his innocence, Roman takes Niebaum hostage. When Chris Sabian (Kevin Spacey) arrives to hear Roman's demands, the two skilled negotiators begin a tense stand-off.

A journalist posts a scathing article documenting Pride's "reckless use of justice"; the team is concerned about the fallout from the piece and the confidential information revealed; Rita Devereaux tells Pride it is a coordinated attack on him.

Pride assembles an off-the-books team to search for a loophole when he faces a grand jury indictment for abuse of power.

Pride's teams uncover a sinister plot during the New Orleans Tricentennial Fleet Week celebration.

While Pride fights for his life in the ICU, the team scours the city for the hit woman who attempted to assassinate him.

The team searches for a former Irish Republican Army bomb maker who was smuggled into the city; they are joined by agent Hannah Khoury, Pride's replacement during his medical leave; Pride considers a new position within the agency.

The team investigates the murder of a Navy intelligence officer killed during a conference for foreign diplomats; Pride has some trouble adjusting to his new position at the agency.

An investigation into the murder of a petty officer reveals a conspiracy in a tight-knit local fishing community; LaSalle awaits the final results of the tax fraud investigation into his family's company.

While pursuing a dangerous arms dealer, the team is shocked when Bishop is implicated in an old NSA leak; Gibbs and Marcie realize the killer they've been tracking may be onto them.

As the NCIS team searches for Gibbs after wreckage from his boat is discovered; they find out he was tracking a serial killer with journalist Marcie Warren, who wrote an exposé on him.

While trying to find the serial killer Gibbs was after, the NCIS team discovers another person has been tracking the case as well.

Gibbs and Parker go on a road trip to find one of the serial killer's victims; Agent Knight goes undercover at a large manufacturing company with ties to the murders.

Gibbs and McGee head to Alaska while the team works at home to uncover the conspiracy behind the serial killer.

The NCIS team investigates the death of a Navy commander whose body suddenly explodes before Jimmy can examine it.

NCIS investigates the death of a beloved Navy commander who trained some of the top athletes in the country.

NCIS investigates the death of a man on a cruise ship whose body is discovered in the ship's sauna by McGee's mother-in-law.

A Navy reservist's body is found in a beat-up car at the end of a gun range; Kasie weighs the pros and cons of buying a gun.

When a hotshot financial adviser is found shot at a naval station, NCIS investigates the case by interviewing the victim's 3D hologram of herself, which she created before her death.

NCIS is called in when Navy Chief Warrant Officer Rafi Nazar is suspected of trying to sell stolen classified Navy software used to pilot combat drones.

After a civilian research vessel in the North Atlantic picks up a small boat of wounded Navy officers, NCIS arrives on the ship and is forced to hide after discovering terrorists are onboard.

The BAU works with the NSA when two undercover DEA agents are murdered and another goes missing; Hotch hopes the team's work with the NSA will bring them closer to finding a ring of hit men.

The members of the BAU team track an unknown subject who appears to be fascinated with medical experimentation.

Reid plays a central role in the BAU's elaborate plan to take down a ring of hit men known as the Dirty Dozen.

When corpses are discovered in public places in Boston, a ride-sharing service may lead the team to the killer.

The BAU looks for a suspect and a motive when victims are found in truck stop restrooms in the South.

An 18-year-old woman escapes from the home where she and two other women were held captive for years.

The BAU team combs Los Angeles for a suspect after security footage is discovered, which shows an unknown subject being invited into victims' homes.

When Morgan is abducted, the members of the BAU team race against time to find him and save his life.

Pride's father, Cassius Pride, is wrapped up in an NCIS case involving a notorious unsolved casino heist; Pride meets a family member he never knew existed.

After Pride's assistant escapes from a kidnapper, the team uncovers evidence of a suspect who is harvesting organs from multiple victims; Pride turns to a friend for guidance as he struggles with the ramifications of his recent brush with death.

Following a deadly car explosion in the French Quarter, the team interrogates a professor and former member of a student protest organization; Tammy discovers a secret about Hannah's personal life.

The team places Mateo Diaz, a high school gang member turned informant, in protective custody while they investigate the murder of his junior reserve officers' training corps instructor; Pride needs his brother's help to gain Mateo's trust.

The team investigates the murder of a Navy contractor who secretly lived two lives for decades.

Pride is given a series of tasks to complete by unknown assailants who are holding Wade and his father hostage.

Pride and the team hope to take down a secret and lethal group of former intelligence agents and avenge the death of someone close to them.

An 8-year-old girl dies in the explosion of an Upper East Side brownstone; detectives determine faulty wiring is to blame, but with little evidence it is difficult to prove the case.

A young Middle Eastern man dies in an apparent hate-crime, but the suspect hires a high-powered lawyer who tries to have the case thrown out.

A man (A.J. Handegard) dies after being identified on a newsmagazine program that had been luring suspected pedophiles by having staff members pose as young girls.

An executive of a body armor company is gunned down while arriving at his daughter's $2 million sweet-16 party; detectives tie the incident to a U.S. soldier killed in Iraq when his vest failed.

Traffic police pull over a drunken, bloodstained celebrity (Chevy Chase), whose racism becomes apparent after his arrest.

Chris Drake finds his friend dead on a party bus, making him an instant suspect; as investigators dig deeper into the case, more of the story comes to light, leading to an unlikely conviction.

When a convicted mass murderer escapes from prison, detectives rush to apprehend him, but not before he murders two more people.

An attorney involved in a high-profile wiretapping case is found dead.

The son of a model and tabloid queen (Mariel Hemingway) dies of a brain tumor caused by bone replacement in his legs.

The adopted infant of a soap opera star and a relative of the baby's biological father are central to a murder investigation.

Someone in a crowd fires a gun, killing a student, during a question-and-answer session of a controversial speaker (Charlotte Ross).

When a gay actor is found dead, evidence points to a popular pastor (Anson Mount) known for speaking out against homosexuality.

When an actress is found hanging in her office, detectives quickly discover that she suffered a blow to the head prior to the hanging.

A high-profile publisher is found dead after putting out a controversial book.

Green and Cassady suspect arson in a string of church fires, but the discovery of a body in the ruins shifts the focus of the investigation to homicide.

Detectives determine to find out whether a rapper's murder was a random act or connected to her work.

The death of a Russian émigré (Michael Aronov) seems to be an act of terrorism until the medical examiner finds traces of a specific drug in the victim's body.

Detectives suspect a former sexual predator of killing young boys.

The son of a retired FBI agent is kidnapped, and the team must investigate if it's an act of revenge; Isobel must make a hard call when information from the past comes to light.

When an attorney is found dead near the body of a private escort, the team must piece together what connected the two seemingly random victims; Jubal's connection with one of the victims makes finding the killer much more personal.

After a truck filled with armor-piercing rifles is hijacked, the team works to discover who stole it, and what they have planned for the stolen weapons; a friend from OA's past returns to help with the case, but OA isn't sure he can trust him.

After the police ignore a desperate father's plea for help, he abducts a billionaire's daughter and holds her hostage in a safe room until his own missing child is returned to him; Jubal puts his hostage negotiation skills to the test.

When the team is called to the scene of a murder, it quickly suspects political motivation; Maggie contemplates a decision that could affect her entire career.

Jess LaCroix and his team come to help OA find a fugitive LaCroix arrested years ago after a bus with 26 students goes missing, and he's the main suspect.

The team is taken hostage when it inadvertently crashes a bank robbery in progress; Sylvester's feelings for Florence grow.

Team Scorpion heads to the bayou to track down a cagey alligator to stop a deadly virus; Paige teaches Walter the concept of the "white lie"; Walter hits Cabe with a tranquilizer gun, and Toby must save his life.

Team Scorpion must use their high IQs to win a softball game; Walter's secret night out with Florence puts Toby and Happy on edge.

Paige's maternal side goes into high gear when an unconscious boy gets stuck in the wheel well of an airborne airplane; Walter's white lie to Paige starts to take a toll on him; Paige realizes something is amiss.

The team heads to Northeast Africa, where they must carefully navigate a minefield to save the lives of local villagers; Paige and Walter's relationship takes a shocking turn; Toby and Happy make an important decision.

When a crisis at LAX prevents dozens of airplanes from landing, the government brings in a group of misfit geniuses to sort things out.

The team searches for an unknown subject who takes children while their parents are asleep; Morgan tries to find out who attacked him.

When an unsub targets the BAU, the team pursues the person who is responsible for the actions.

Emily looks to the BAU for help when tracking an international serial killer; the BAU deals with Morgan's departure.

The BAU hunts for an UnSUB who deliberately disfigures victims; Rossi and his ex-wife have an uncomfortable reunion.

The BAU plays a dangerous cat and mouse game with a convicted serial killer who may have information on the whereabouts of two kidnapped boys.

Hotch is arrested by a SWAT team and suspected of conspiracy; when the team members scramble to prove Hotch's innocence, they discover a larger plot may be on the horizon.

New recruit Luke Alvez helps the team capture a killer who escaped from prison with 12 other convicts.

J.J. is shaken after investigating the case of two abducted children, and tells her husband about the events.

Pride and the team hope to take down a secret and lethal group of former intelligence agents and avenge the death of someone close to them.

While undercover, Gregorio joins a social club for military wives after one of the members is contacted by an ex-boyfriend who is on the FBI's most wanted list.

NCIS investigates the disappearance of a Navy entomologist after a deadly shooting at a research lab; the team finds that a rare and deadly virus was stolen.

Pride and the team reunite with conspiracy journalist Oliver Crane after the source for his latest story is murdered; Hannah's former partner, Liam Somers, surprises her and shares a shocking revelation about an old case.

The team investigates a drug deal gone bad after the body of a college student is found; Detective Hailey Upton temporarily joins the team and finds her investigative methods clash with the Bureau's more buttoned-up environment.

The team welcomes a new member, Special Agent Tiffany Wallace, as they search for killers who orchestrated a mass shooting at a media company; OA's personal connection with the case threatens to cloud his judgment.

The team races to stop an active serial killer after three women are found weighted down at the bottom of a lake; Jubal looks into an old closed case after there are multiple similarities to the recent victims.

When the leader of a drug cartel and one of the world's most wanted men is apprehended by the team, the entire FBI headquarters is put at risk when his henchmen unveil a plot to free him; Isobel must make a difficult decision.

A shooting at a quinceañera leaves two dead, but the team believes they may not have been the intended targets; Maggie is conflicted as the team decides the best plan of action for using a witness to take down their suspect.

The team searches for a young girl who was kidnapped from a cabin during a family vacation; Maggie questions her relationship with Nestor when she learns he hasn't been completely honest with her.

The team is called upon by the governor when a virus leaves his daughter with only 24 hours to live; Walter receives a letter about his sister.

After failing a military training mission, the team members are determined to prove themselves when an Internet infrastructure is threatened by a bomber.

The members of the team disregard Cabe's advice and go to Las Vegas for a casino job; a robbery leads to Walter being arrested.

Walter and the team ask a troubled former associate for help when a nuclear reactor in Los Angeles is on the verge of a cataclysmic meltdown.

After being accused of destroying a priceless piece of art, the team must pass a mandated psych evaluation; Paige asks the team for help when Ralph is hesitant to go to the school Halloween party.

Three convicts -- including a brilliant hacker -- escape from prison; Paige tries to manage Ralph's expectations when his dad returns.

As the BAU welcomes back Emily Prentiss, they're called upon to investigate the disappearance of three women.

The team searches for a serial killer along the Appalachian Trail in rural Virginia.

The BAU investigates the case of two murdered families, where two high school students are the sole survivors.

Three children vanish while riding their bikes on the same path where a similar unsolved disappearance took place 30 years earlier.

A man who believes himself to be the brother of Dr. Tara Lewis arrives in town, knowing everything about Tara's family; Tara is unable to make contact with her real brother.

The BAU team investigates when the remains of a dozen people are discovered along a creek bed in Yakima, Wash.

While conducting a profiling course on his birthday, Rossi gets a call from serial killer Tommy Yates, who gives him the location of his latest victim.

The team investigates when home invasions involving casualties strike upscale neighborhoods in San Diego.

The team investigates multiple murders tied to a construction company that creates an experimental chemical that strengthens sea walls; evidence from Hannah's previous mission in Oman is used against her.

After an elusive terrorist with a personal vendetta against Hannah resurfaces, she and her family are placed in protective custody while the team searches for the suspect.

After a reshuffling of assignments, Pride returns to the New Orleans office during the investigation of a missing petty officer.

The NCIS team investigates the murder of Patton's friend, a former Navy SEAL gunned down in a drive-by shooting while Patton watched.

The team must infiltrate a drug trafficking gang after the robbery of a chemical plant leaves two customs agents dead; Nestor offers his help on the case, giving Maggie new insight into his character.

The team hunts a killer who is fatally shooting seemingly unrelated targets; new agent Tiffany Wallace experiences tension between her work as an FBI agent and the responsibility she feels to her community as a Black woman.

After a bomb leaves three people dead, the team presses a reluctant informant to gather information from his close friends who are under suspicion; OA and his girlfriend clash over where the informant's rights lie.

When a reporter is kidnapped and held without a ransom demand, the team must dig into her past relationships in order to pin down her assailant's motive; Isobel's relationship comes under fire when the case makes a connection to her boyfriend.

The team must track down two assailants who wear animal masks while committing armed robberies; Tiffany and Scola butt heads on whether to accept the local NYPD's offer to help in the investigation.

After a man is killed by an explosive package shipped to his home, the team attempts to capture the sender and intercept his latest deadly parcel; Maggie struggles to trust her younger sister.

A musician -- who created a controversial algorithm to generate hit songs -- helps the team investigate the murder of a music blogger; Drew seeks help connecting with his son.

Cabe's ex-wife needs the team's protection after she discovers evidence that suggests a prominent congressman's death involved foul play.

The team must recover stealth technology from a military plane that was shot down in Bosnia; Walter's sister visits with Sylvester at the garage.

Sylvester ends up in critical condition after accidentally triggering an explosion during an investigation; the team must remain focused on finding the culprit.

On Christmas Eve, a boy is trapped in a beach-side cave, where the rising tide threatens his life; the team races to find a way to save him.

The team tries to help Ralph when he is taken by the FBI for questioning after his web game play unintentionally reveals a CIA safe house's location.

The BAU investigates when a bizarre hieroglyph is found under a deceased homeless man's armpit; Reid decides to take his mother out of a clinical study early to bring her home.

The BAU team is called in to investigate when male bodies are discovered that seem to be impossible to identify.

When a BAU member gets in trouble in Mexico, the team enlists the services of the International Response Team for help.

The BAU looks into the cause of several fatal car crashes involving drivers and pedestrians; Reid gets bad news.

The BAU investigates a series of disfiguring acid attacks on young men and women; Dr. Reid begins to settle into his new surroundings.

A mother steps forward with valuable information for the BAU to aid in their investigation of an unsub known as the bone crusher; Reid must adapt to a new set of rules in prison.

The BAU believes two unsubs may be operating simultaneously when victims killed in two different ways are discovered in the same city; the team grapples with keeping Reid safe in prison.

The BAU investigates an urban vampire who kidnaps his victims at night and holds them underground in the sewer system; Reid makes a difficult decision in prison.