The team investigates the death of a Naval microbiologist whose hobby as a "myth buster" resulted in his death at the hands of a legendary bayou creature; Agent Khoury conducts an investigation into previous actions of Deputy Director Van Cleef.

As New Orleans grapples with the effects of COVID-19, Pride sends Tammy and Carter to investigate a suspicious death aboard an offshore humanitarian ship; Wade is overwhelmed by the high volume in the morgue due to COVID-19.

Tammy and Carter continue to investigate a suspicious death aboard a COVID-infected humanitarian ship; Pride and the team discover what may be the key to finding the killer; Wade helps a grieving woman.

Pride and the team take on a group of dirty cops when they discover that a murder victim was also a key witness in multiple excessive force cases; Tammy faces the reality of being in a new relationship.

The team continue to investigate the murder of an officer who was about to blow the whistle on police misconduct; Pride must get creative in order to finally get rid of the dirty cops; the mayor asks Pride to join her new task force.

The team investigates a suspicious death and the missing key piece of evidence is a top secret, high-tech battery; Pride and the team realize there could be deadly consequences if it falls into the wrong hands.

When a torpedo hits a fishing trawler at sea, the entire Gulf Coast is in jeopardy as Pride and NCIS race to find the submarine before it can strike again.

When New York's most infamous baseball fan is stabbed to death in a bar, detectives suspect the killer is probably a sports aficionado.

A female Japanese tourist is shot to death, prompting an investigation that leads the police to the victim's husband.

The detectives believe a bride, motivated by greed, killed her groom after the wedding, until they find the murder weapon in her daughter's room.

When a deliveryman is gunned down on his route, Briscoe and Green discover that he was active on a Web site for arranged liaisons and that his wife had just bought a gun.

Terms of the Geneva Convention come into play when the sister of a former inmate at Abu Ghraib prison is suspected of murdering a female Guardsman in the second Gulf War.

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

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.

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 or not 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.

The team rushes to track down two doctors abducted by a desperate father willing to do anything to save his son; Jubal's uncertainty in his family life affects his judgement during the hostage situation.

Budget problems lead Weaver to a difficult decision; Hathaway and Del Amico meet Carter's grandmother (Frances Sternhagen); Greene's attitude worsens.

Greene tags along for support when grieving Ross drives to California; Greene and Ross visit Greene's parents (Bonnie Bartlett, John Cullum).

Hathaway opens her new clinic; Carter's med student (Chad Lowe) faces an emergency; a boy's operation alters a rare anatomical abnormality.

Greene's lawyer (Dan Hedaya) pays an unusual visit; Jeanie argues for a right to her job; Carter protects a patient's civil rights.

Benton and Del Amico treat a blind patient who was hit by a car; Greene treats an elderly rape victim; Carter's grandmother (Frances Sternhagen) tours the clinic.

Homeless seek warmth at the ER; Weaver lobbies to allow Synergix to take over management of the ER; Corday seeks a surgeon to perform a vocal-cord operation.

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.

A Navy therapist who is working to get justice for victims of sexual assault is murdered; Carter's mother confronts him when he refuses to talk to the FBI for a background check on her behalf.

As Pride and the team continue the investigation of an officer's assault and the murder of her therapist, NCIS zeroes in on a suspect who's been working the system for years; Carter and his mother talk about how they'll move forward after a mistake.

Pride and the team are on the hunt for a kidnapped 14-year-old and discover that her father, who will soon have custody of her, is a radical survivalist living off the grid.

When a petty officer is shot down by a sniper, Pride and NCIS hunt down the killer, only to find that he may not be acting alone; Rita tells Pride that she has been offered a compelling job.

When the CEO of a major brokerage firm is killed while surrounded by protesters, the team looks into who had the most to lose from his company's perceived manipulations; Scola's previous Wall Street career and the reasons he left come to light.

While investigating a mass casualty incident at a New York City restaurant, the team scrambles to determine if it was racially motivated and if there was more than one gunman; Maggie starts to notice troubling behavior from her co-worker Elise.

When five prominent men are gunned down at a trendy New York restaurant, the team's investigation brings them into contact with a lieutenant in Antonio Vargas' cartel, triggering a showdown between Isobel and Vargas.

After a young woman is killed on her way home from a lavish yacht party, the team investigates who she was and how she came to be at the event.

Maggie, OA and the team must stop a hacker who is disabling life-saving equipment in several New York City hospitals; Jubal's son waits for important surgery at one of the impacted hospitals.

The team finds a connection between bombings and a private veterans' club in New York City; Isobel tells a reluctant OA to recruit a former Army buddy for intel.

The team hunts for a serial killer who is targeting young, homeless men; Tiffany and Scola don't see eye to eye on how to handle the case.

Ross plans his future; another elderly rape victim is found; Jeanie cares for Anspaugh's cancer-stricken teenage son; Weaver questions Ellis' budget cuts.

The ER faces a blood shortage; a security guard stops a rapist assaulting an old woman; Benton is upset when Carla plans to put Reese in day care.

Cynthia accompanies Greene to San Diego when he goes home to see his hospitalized mother (Bonnie Bartlett); guest John Cullum.

Carter takes over when the effects of a toxic-spill explosion spread beyond the injured workers; guest Mickey Rooney.

Carter tells his grandparents about Chase; Ross and Weaver clash over his research grant; Romano reviews Corday's performance; Jeanie continues to see young Scott.

ER staff treats animal activists after a car crash; Corday and Benton experience relationship complications; Scott Anspaugh gets bad news; Morgenstern returns.

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.

Sebastian's life is in danger when a criminal he put behind bars escapes police custody; Carter is tasked with keeping Sebastian in protective custody; Carter and Hannah's flirtation is fun gossip fodder for Tammy and Sebastian.

After a Molotov cocktail is hurled into Pride's bar, evidence leads him to his old nemesis, Sasha Brousard; Tammy uses her profiling skills on Hannah and Carter with shocking accuracy.

The team investigates the deadly bar bombing and impending criminal turf war involving Sasha Broussard; Pride must come to terms with having Connor in his life; Carter and Hannah work to define their new relationship.

Pride directs the team to link Sasha to the recent attacks in New Orleans; Carter and Tammy search for a stolen highly trained military dog; Pride and Rita make an important decision about their wedding.

After a suburban woman is kidnapped from her home, the team looks into trysts on both sides of a seemingly perfect marriage; OA feels pressure from Mona to make changes in his career path.

The team must track down a shooter targeting detectives from the same precinct and unit while facing mounting tension from the NYPD; Tiffany finds that her NYPD roots may be influencing her view of the situation.

After a young girl is kidnapped from her daycare, the team must help her parents navigate a debt owed to the deadly gang in their neighborhood; Maggie struggles to focus on the case when her sister returns from rehab.

A widow is shocked that her new "boyfriend" is the manipulative leader of a terrorist group planning an attack; Scola is reminded of his brother's death on 9/11; Tiffany worries about his emotional choices during the investigation.

After Rina is critically wounded while heading to work with Jubal; the team makes the chilling discovery that a vengeful Vargas orchestrated the shooting from behind bars and continues to target the rest of their team and their loved ones.

As the team investigates a string of jewelry store robberies that culminate in a double murder, they uncover a connection to a 16-year-old boy trying to survive the foster care system.

The team searches for an abducted college coed; Jubal has a tense encounter with Rina's mother.

Benton's complicated surgery goes awry; Scott faces more chemotherapy; Del Amico learns she is a match for bone-marrow donation; annual ER banquet is held.

After ghosts ruin a popular coed's social life, she dedicates herself to hunting them.

Hathaway tries to reconcile a critical patient (Michael Rapaport) with his family; Benton attends son's baptism; Carter comes to an understanding with his grandmother.

Dr. Rosher (James LeGros) studies the feasibility of a pediatric ER unit; Del Amico is troubled when a televangelist (Swoosie Kurtz) uses her illness for gain.

Past treatment of a drug-addicted baby complicates Ross' life; hospital politics anger Weaver; Benton worries about his son; Carter confronts Del Amico.

Medical student Lucy Knight has a difficult first day and clashes with Dr. Carter, but Dr. Ross discovers her abilities.

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.

Pride and Rita plan their wedding; the FBI arrests Connor in connection to the bar's firebombing.

On the eve of his wedding to Rita - and Connor leaving for the Witness Protection Program - Pride must track down who attacked Jimmy and Connor, while he navigates Sasha's ulterior motives regarding her son.

The team investigates the death of a petty officer whom Pride had mentored; Brody searches for a place to call home.

When a Navy lieutenant on liberty dies of bubonic plague, NCIS Special Agent Tony DiNozzo helps the New Orleans team as they try to control a potential outbreak and find the source of the infectious disease.

Maggie goes under cover working in a bar to investigate an anti-government group that regularly gathers there; a single father on the periphery of the group begins to fear he's in danger of becoming collateral damage.

When a Muslim college student and his younger brother are murdered, the team connects with the outraged imam of OA's former mosque, who insists the victims were wrongly targeted as terrorists.

The team investigates an extremist gun group after an anti-gun lobbyist building is bombed; SAC Bashar dangles a possible promotion for OA.

The team realize they have a cross-country serial killer on their hands; the case has ties to Isobel's father, Robert, and his hotel, leading to revelations about their fractured relationship.

After an immigration agent is fatally shot at a hockey game, the team attempts to find the shooter, who they believe may also be targeting Congressman Curtis Grange, who was at the same game.

When a young couple is found murdered in a New York City park after returning from a vacation, the team searches for a suspect linked to the drug trade; Scola turns over a new leaf when it comes to his relationships.

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.

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 (Michael Imperioli) into the colorful world of horse racing, and they learn that the animal's owner used stolen funds for the purchase.

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

After 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 5-year-old girl.

Fontana and Green seek the aid of Detective Olivia Benson (Mariska Hargitay) when they discover a money-laundering scheme involving a mother-daughter team (Lynda Carter, Estella Warren) Benson had dealt with in a past case.

When 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.

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.

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.

McGee's personal life and professional life intersect when a dad from his children's school is linked to a break-in at a government storage bunker.

When a dead body is found at an ancient burial site that is thought to be cursed, the team tries to determine the motive and the symbolism behind the crime; as Torres continues therapy with Dr. Grace, he discovers that their lives are in danger.

Agent Knight's past resurfaces when her ex-boyfriend, a National Parks Service agent, teams up with NCIS to investigate a campsite murder.

Agent Parker steps up to protect director Vance after a terrifying home invasion; the team detects advancements in Jessica and Jimmy's blossoming romance.

Carol covers for Lucy when she panics; karate student suffers fatal kick; injured gang members' girlfriends battle in the ER; air conditioning breaks down.

Weaver vies for top job; Ross gets new pediatric job; Lucy hides her incompetence from Carter; Benton keeps Reese's deafness a secret; human bomb needs treatment.

Weaver kisses up to Greene; Ross hinders an amputation; Lucy loses a dead body; Carter finally learns the truth about Lucy; Corday gets a new supervisor.

In 1977, college graduates Harry Burns (Billy Crystal) and Sally Albright (Meg Ryan) share a contentious car ride from Chicago to New York, during which they argue about whether men and women can ever truly be strictly platonic friends. Ten years later, Harry and Sally meet again at a bookstore, and in the company of their respective best friends, Jess (Bruno Kirby) and Marie (Carrie Fisher), attempt to stay friends without sex becoming an issue between them.

Struggling boutique bookseller Kathleen Kelly (Meg Ryan) hates Joe Fox (Tom Hanks), the owner of a corporate Foxbooks chain store that just moved in across the street. When they meet online, however, they begin an intense and anonymous Internet romance, oblivious of each other's true identity. Eventually Joe learns that the enchanting woman he's involved with is actually his business rival. He must now struggle to reconcile his real-life dislike for her with the cyber love he's come to feel.

In 1977, college graduates Harry Burns (Billy Crystal) and Sally Albright (Meg Ryan) share a contentious car ride from Chicago to New York, during which they argue about whether men and women can ever truly be strictly platonic friends. Ten years later, Harry and Sally meet again at a bookstore, and in the company of their respective best friends, Jess (Bruno Kirby) and Marie (Carrie Fisher), attempt to stay friends without sex becoming an issue between them.

Struggling boutique bookseller Kathleen Kelly (Meg Ryan) hates Joe Fox (Tom Hanks), the owner of a corporate Foxbooks chain store that just moved in across the street. When they meet online, however, they begin an intense and anonymous Internet romance, oblivious of each other's true identity. Eventually Joe learns that the enchanting woman he's involved with is actually his business rival. He must now struggle to reconcile his real-life dislike for her with the cyber love he's come to feel.

The team investigate the murder of a Navy Officer assigned as a tech liaison with a private developer; Pride turns the carport into an auto shop.

A murdered petty officer - with a proposal and an engagement ring - is found in a Mardi Gras float storage facility; the members of the team are baffled when they cannot locate the victim's girlfriend.

The team reopens a cold case when a stolen Navy-issue gun turns out to belong to a chief petty officer who died 40 years ago; the team makes their annual Thanksgiving dinner together.

A retired SEAL - who tracked people impersonating military personnel - is murdered; Brody finds that LaSalle is uncharacteristically unenthusiastic about Christmas.

The investigation into an explosion at the Navy-Marine Corp Relief Gala reveals Pride was the bomb's target.

The NCIS team and the Coast Guard Investigative Service work together when a Navy Admiral's daughter is the prime suspect in a double murder on a research boat; Lasalle looks for his estranged brother.

After learning he was poisoned with a deadly dose of radiation, a Navy lieutenant commander asks Pride and the team to solve his imminent murder.

When an NCIS agent turns up dead and Kasie goes unaccounted for, the team must work quickly to find the killer.

NCIS must investigate the secretary of the Navy when her husband claims she tried to murder him.

After an unknown shooter causes chaos at an annual Thanksgiving 5K, time is of the essence for the NCIS team to find the culprit; Kasie joins Knight for Thanksgiving lunch at Knight's sister's house.

NCIS investigates the death of a college student who was killed while running across the street and had connections to McGee's wife.

NCIS agents from Washington, D.C., Los Angeles and Hawaii, in D.C. to attend the retirement party of a beloved Federal Law Enforcement Training Center professor, find themselves investigating his shocking suicide.

Parker discovers he's a victim of identity theft while investigating the unusual murder of a Navy ensign; Knight and Jimmy face hurdles in their relationship as their connection heightens.

When an old pal of Torres' comes to him - disheveled and bloodied - for guidance amidst an undercover FBI operation and then disappears, NCIS helps track him down; McGee prepares to be a contestant on a popular game show.

In preparation for a role, a world-renowned actress shadows the NCIS team as they investigate a decapitation case.

Parker grapples with his emotions when a con man from his past turns up as a prime suspect in the murder of a navy officer.

NCIS investigates the death of a ride-share driver who was found after a car accident; Parker's dad, who is temporarily living with him, assists the team in their investigation.

The NCIS team jumps into motion to investigate who is responsible for a potential bioterror attack at a strip mall parking garage; Knight's father deals with a health scare while in Japan.

NCIS works to solve the murder of a Marine private who appears to have been killed for helping an Afghan refugee; Jimmy navigates the pressure of parenting his teenage daughter, who is eager to go out on an unchaperoned group date.

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.

An agent is killed while working on a security detail for the Vice Chief of Naval Operations; Brody's past is evaluated.

A petty officer is murdered during Mardi Gras festivities; Pride contemplates what to tell his daughter about his strained relationship with his father.

The NCIS team tries to narrow down the motive when a Navy recruiter is murdered in a hit-and-run; Lasalle worries about his brother.

Pride believes Baitfish has returned and has the NCIS team chase down leads in an attempt to locate him.

When a sailor is killed in a strip club, the murder weapon turns out to be linked to other unsolved cases; Brody receives a visit from her ex-fiance.

During the autopsy of a petty officer who seems to have died of natural causes, an armed man holds Wade, Sebastian and Danny hostage in the morgue.

When a Navy commander's car is stolen with his baby inside, the team must determine if it was a targeted abduction.

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, and 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 citizens border-patrol member of his killing.

When detectives investigate a series of seemingly random murders, they find a hit list that includes ADA Jack McCoy, who 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.

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.

Detectives investigate the strangling of a promising Hispanic student at a private magnet school.

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.

OA is forced to confront one of his biggest fears when the team discovers that deadly sarin gas may have been sold to terrorists.

When a morning show host is murdered inside her home, the team tracks the killer; things become awkward for Scola when agent Nina Chase becomes part of the team during Maggie's recovery.

A killer is using drug mules to exploit airport security checkpoints; OA struggles to cope with the aftermath of the sarin gas exposure and the 10th anniversary of his army friend's death in Afghanistan.

When a retired Drug Enforcement Administration agent is shot outside a bakery, the team works to determine if the victim's past cases or current bouncer job are connected to the murder; Nina and Tiffany clash over the use of an informant.

A robbery in New York leaves a deadly trail of blood in its wake, and the killers loot an arsenal of fully automatic weapons in the process.

The team pivots when their sting operation to secure a massive bomb from an illegal broker leads them to discover that the device is already in the wrong hands; Jubal's promise to be present at his son's birthday party is put to the test.

Ross juggles duties and patients on Halloween; the new ER chief (Philip Casnoff) offends staffers; a schizophrenic (Sheila Kelley) says she is pregnant.

An elderly man (Harvey Korman) hesitates to leave Hathaway's care; Weaver rents Carter a room; Greene treats prostitute at a crime scene; a deaf doctor helps Benton.

A promising candidate (Mare Winningham) interviews for the ER chief job; Corday becomes Benton's intern; paramedics pull an initiation prank on Greene.

A young accident victim (Nicolette Little) requires a blood transfusion that can come only from her father (John Thaddeus) who is missing from the hospital.

The staff honors a woman (Anne Pitoniak) born at the hospital 100 years ago; Hathaway uncovers the truth about a young boy's shooting death.

Carter urges a woman to donate her brain-dead son's liver to another teen; cranky old elf irritates Greene; Romano spoils Benton's Christmas Eve plans.

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.

Lasalle's brother, Cade, needs the team's help when he becomes a murder suspect - and cannot remember what happened; Lasalle is determined to prove Cade's innocence, despite the wealth of evidence against him.

Baitfish murders a person close to the team in order to send a message to Pride; a citywide hunt for the elusive criminal takes place.

Pride has suspicions about a mole; new intelligence comes to light that indicates a breach at the ports.

Pride and the team must go on a dangerous undercover mission to retrieve a stolen missile and prevent an attack.

When an officer is shot dead at a pawn shop along with the store's owner, the team tries to figure out why a young, recent Ivy League dropout is tied to the crime.

When a wealthy accountant is gunned down for secretly testifying against a notorious drug lord, the team's investigation leads Tiffany to ask for help from a friend who was formerly with the NYPD and is related to the dangerous crime boss.

The team investigates a series of brutal assaults; OA hides information about his own mugging.

As the team works to rescue a 5-year-old kidnapping victim, Scola suspects the boy's mother isn't being forthcoming about why her son was targeted; Nina struggles to open up to Scola about matters in their relationship.

Maggie returns from medical leave and helps the team investigate two homicides: a law student and a young man with possible gang ties; an inadvertent revelation from Maggie causes OA to worry that she is rushing back into the job too quickly.

When a deadly truck heist arms the killers with enough ammonium nitrate to construct a massive bomb, the team discovers a link to a terrorist group Maggie is working to infiltrate.

A teen shows up at FBI headquarters with a large bag of fentanyl, seeking the team's protection from the men who shot his father; Nina goes to Scola with a proposal he is hesitant to accept.

Greene finds Lee's actions suspicious; labor pains cause a car crash; Benton tries to communicate with his son; Carter fears he has tuberculosis.

Carter allows Lucy to advance; critically ill patient claims to be a survivor of slavery; Corday learns Romano is sexually harassing Doyle.

Ross helps the mother of a dying boy; Benton attends a parent/child signing class; a hospital janitor (Djimon Hounsou) complains of back pain.

Joi's son dies; Hathaway's clinic may have to close; staff responds to a school bus accident; Benton learns to sign; guest Marlee Matlin.

Dr. Ross struggles at professional and personal crossroads; Mobalage's wife (Akosua Busia) shares a horrifying secret with Hathaway.

Dr. Benton encounters life-threatening situations in Mississippi when he uses vacation time to accept a temporary position at a small-town clinic.

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.