A simple job at the Los Angeles Natural History Museum turns deadly when thieves steal things from a rare gem exhibit to get the materials they need to make a nuclear bomb.

A Marine lieutenant and his nurse fall in love on a hospital ship off the coast of Iwo Jima during World War II.

Newly appointed Judge Rabb hears a case involving the accidental bombing of British troops in Afghanistan.

A news reporter's murder leads to an investigation into Libya's rebel movement; Hetty reveals information about Callen's past.

Detectives investigate leads in what they believe was a targeted killing; reporter Mark Carcasole reveals the twists and turns in the plot to kill Davis, and just how close to home it was.

Terrie Ann Dauphinais, a young Metis woman, is found dead in her home; her death was deemed a homicide, but no charges were ever laid, and the case went cold; new developments in the investigation lead to a dramatic turn of events.

When a killer executes 19-year-old Abigail Gasca-Chavez in her own home, the only witnesses are her toddler and neighborhood surveillance cameras; detectives close in on a suspect, but when he heads for the Mexican border, it's a race against time.

Kowalski, Welsh and Thatcher (Callum Keith Rennie, Beau Starr, Camilla Scott) all witness a murder at the mall, but can't agree on who did it.

When Fraser's friend intercepts a secret message, Fraser and Kowalski become entrapped in a deadly arms transaction.

In North Carolina, Stephanie Powell-Anderson's convenience store shift ends in bloodshed, as part of a larger pattern of violence plaguing the area; with the assailant growing bolder by the day, the heat is on to make an arrest before he kills again.

When a killer executes 19-year-old Abigail Gasca-Chavez in her own home, the only witnesses are her toddler and neighborhood surveillance cameras; detectives close in on a suspect, but when he heads for the Mexican border, it's a race against time.

Adm. Chegwidden ejects from a fighter jet, and Harm commandeers a vehicle to go find him in wintry Virginia mountains.

A submarine is headed to the Middle East, but it turns back when the crew cannot account for a missing nuclear torpedo.

When Lyle's niece is accused of committing a crime on her college campus, Lyle enlists Margaret and Todd to vindicate her.

A port authority officer's murder reveals a possible location for Parsa; Bishop reveals a past connection to the terrorist.

Team Scorpion explores a deep cave system in an effort to prevent a bat population from harming the North American ecosystem; the team dons Halloween costumes for Walter's impending immigration inspection.

A spoiled heiress is found dead in her bathtub during her own party, with no shortage of suspects; Horatio tells Delko that he and Marisol plan to wed as soon as possible.

Adm. Chegwidden ejects from a fighter jet, and Harm commandeers a vehicle to go find him in wintry Virginia mountains.

A submarine is headed to the Middle East, but it turns back when the crew cannot account for a missing nuclear torpedo.

A spoiled heiress is found dead in her bathtub during her own party, with no shortage of suspects; Horatio tells Delko that he and Marisol plan to wed as soon as possible.

Team Scorpion explores a deep cave system in an effort to prevent a bat population from harming the North American ecosystem; the team dons Halloween costumes for Walter's impending immigration inspection.

When Lyle's niece is accused of committing a crime on her college campus, Lyle enlists Margaret and Todd to vindicate her.

The team tracks down one of Parsa's cohorts by using evidence from the drone attack; McGee remains emotionally shaken.

A spoiled heiress is found dead in her bathtub during her own party, with no shortage of suspects; Horatio tells Delko that he and Marisol plan to wed as soon as possible.

Team Scorpion explores a deep cave system in an effort to prevent a bat population from harming the North American ecosystem; the team dons Halloween costumes for Walter's impending immigration inspection.

Adm. Chegwidden ejects from a fighter jet, and Harm commandeers a vehicle to go find him in wintry Virginia mountains.

A submarine is headed to the Middle East, but it turns back when the crew cannot account for a missing nuclear torpedo.

The LAPD asks NCIS for help when a case exposes a link between a Mexican drug cartel and a terrorist.

For seven years, Cindy James told police she was being stalked; when the Vancouver nurse's lifeless body was found two weeks after she went missing, and no suspects, a coroner's inquest is called in hopes of solving the mystery.

For seven years, Cindy James told police she was being stalked; when the Vancouver nurse's lifeless body was found two weeks after she went missing, and no suspects, a coroner's inquest is called in hopes of solving the mystery.

In Groton, Vermont, a young man with a developmental disability leaves work and is never seen again; with no leads in sight, investigators must rely on surveillance footage to piece together the truth behind Christopher Gray's disappearance.

During a night of full-moon madness, Ray punches a hole in the interrogation room wall and finds a perfectly preserved corpse.

Fraser must find a flight attendant's killer before her RCMP father starts an international incident.

Detectives rely on surveillance footage at a hospital in Tyler, Texas, when patients mysteriously start dying in the intensive care unit.

In Groton, Vermont, a young man with a developmental disability leaves work and is never seen again; with no leads in sight, investigators must rely on surveillance footage to piece together the truth behind Christopher Gray's disappearance.

The INS catches a Marine who appears to be smuggling illegal aliens into the country to work at a sweatshop.

A woman recognizes a petty officer on television as someone who had been reported dead in the collapse of the World Trade Center.

Margaret asks Todd for help on a seemingly straightforward wrongful termination case over a dating app, but with Todd's investigation, they quickly realize it's much more complicated; tensions between Margaret and Gus simmer.

Someone winds up dead when DiNozzo confronts a man impersonating a Navy officer; DiNozzo's father has a secret.

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

The team is on the verge of putting away members of the Mala Noche gang, but the gang's planned hit on Horatio endangers the lives of those close to him.

The INS catches a Marine who appears to be smuggling illegal aliens into the country to work at a sweatshop.

A woman recognizes a petty officer on television as someone who had been reported dead in the collapse of the World Trade Center.

The team is on the verge of putting away members of the Mala Noche gang, but the gang's planned hit on Horatio endangers the lives of those close to him.

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

Margaret asks Todd for help on a seemingly straightforward wrongful termination case over a dating app, but with Todd's investigation, they quickly realize it's much more complicated; tensions between Margaret and Gus simmer.

When faulty bulletproof vests are found in a truck full of stolen U.S.M.C. merchandise, the team must determine where they came from and track any defective vests that were shipped overseas.

The team is on the verge of putting away members of the Mala Noche gang, but the gang's planned hit on Horatio endangers the lives of those close to him.

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

The INS catches a Marine who appears to be smuggling illegal aliens into the country to work at a sweatshop.

A woman recognizes a petty officer on television as someone who had been reported dead in the collapse of the World Trade Center.

After a former Navy intelligence officer is murdered, the team's investigation reveals she was living a double life.

Looking into some of Canada's most infamous criminal cases with extensive archives and intimate family interviews and exploring the lasting impacts on the community and justice system.

In a small town located less than an hour from Canada's largest military base, a rash of break-ins escalates to assault and then murder; tire tracks point police to someone above suspicion.

In Texas, on Christmas Eve 2010, a woman gets a mysterious phone call at work and speeds home to find her 12-year-old son gone without a trace; investigators look at those closest to the boy, but only surveillance footage can lead them to the truth.

After Kowalski is framed for the murder of a crime boss, Fraser places him under arrest at the Canadian consulate.

The case of a murdered sailor, $100 million in gold bullion and a ghost ship in the Great Lakes Triangle tests feuding Fraser and Kowalski.

In a Calgary pub in 2010, 36-year-old barman Dexter Bain is brutally slain during a failed robbery; detectives use surveillance footage from a nearby store to find the suspect and stage a filmed sting operation to prove who pulled the trigger.

In Texas, on Christmas Eve 2010, a woman gets a mysterious phone call at work and speeds home to find her 12-year-old son gone without a trace; investigators look at those closest to the boy, but only surveillance footage can lead them to the truth.

Members of the elite Naval Criminal Investigative Service are sent in to probe the murder of a JAG officer found in a park. Mark Harmon, Michael Weatherly, David McCallum and Robyn Lively guest star.

With Harm under arrest for the murder of a JAG officer, the Naval Criminal Investigative Service continues to examine evidence to build the case against him.

When Margaret finds herself on the verge of losing a prominent case involving the murder of an investigative journalist, Todd seeks help from an unlikely source - his imprisoned ex-girlfriend, Veronica.

When a former NCIS agent's body washes ashore in New Orleans, Gibbs reunites with NCIS Special Agent Dwayne Cassius Pride (Scott Bakula) to determine if the murder was politically motivated or related to a well-known case.

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.

Horatio mourns the murder of someone close to him as he and the team hunt for the killer; the revelation of the mole's identity jeopardizes the future of the lab.

Members of the elite Naval Criminal Investigative Service are sent in to probe the murder of a JAG officer found in a park. Mark Harmon, Michael Weatherly, David McCallum and Robyn Lively guest star.

With Harm under arrest for the murder of a JAG officer, the Naval Criminal Investigative Service continues to examine evidence to build the case against him.

Horatio mourns the murder of someone close to him as he and the team hunt for the killer; the revelation of the mole's identity jeopardizes the future of the lab.

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 Margaret finds herself on the verge of losing a prominent case involving the murder of an investigative journalist, Todd seeks help from an unlikely source - his imprisoned ex-girlfriend, Veronica.

The team must identify the target when a bomb goes off in a dressing room at a military charity concert; Jimmy gets ready to be a father.

Horatio mourns the murder of someone close to him as he and the team hunt for the killer; the revelation of the mole's identity jeopardizes the future of the lab.

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.

Members of the elite Naval Criminal Investigative Service are sent in to probe the murder of a JAG officer found in a park. Mark Harmon, Michael Weatherly, David McCallum and Robyn Lively guest star.

With Harm under arrest for the murder of a JAG officer, the Naval Criminal Investigative Service continues to examine evidence to build the case against him.

The team must establish whether a dishonorably discharged Marine committed a murder or is being framed.

When the key suspect in a series of assaults and murders is brought in for questioning, a cat and mouse game unfolds in the interview room and ultimately leads to a shocking confession from a man leading a secret double life.

What started as a petty falling out between a group of high school friends led to the creation of two rival gangs; over a decade the animosity between the "FK's and FOB's" gangs grew as did their illicit activity.

In 2016, father Craig Rideout is reported missing after a strange home intrusion; within hours, police find a body matching Craig's description fifty miles away; using surveillance footage and forensics, detectives unravel an unbelievable plot.

The case of a murdered sailor, $100 million in gold bullion and a ghost ship in the Great Lakes Triangle tests feuding Fraser and Kowalski.

Ray and Kowalski help a small-town sheriff when the town's baseball team becomes a target of sabotage attempts.

An escaped inmate murders Debra Johnson, a highly respected Correctional Administrator, at her home outside the prison; with the public at risk, police scour through surveillance footage for clues to hunt him down before he strikes again.

In 2016, father Craig Rideout is reported missing after a strange home intrusion; within hours, police find a body matching Craig's description fifty miles away; using surveillance footage and forensics, detectives unravel an unbelievable plot.

The CIA recruits Mac to pose as an agent's pregnant wife and help bring down a drug lord selling weapons to terrorists.

Preview of "Invisible Monsters: Serial Killers in America.".

Weaving together the stories of five of America's most notorious serial killers: Ted Bundy, John Wayne Gacy, Jeffrey Dahmer, the Green River Killer and BTK.

Two of The Five, Gacy and Bundy, sit on death row in the mid-1980s as their murderous rampages are curtailed.

After years of evading capture, Gacy and Bundy are finally brought to justice as they both face punishment for their heinous crimes.

Horatio and Delko travel to Brazil in pursuit of Marisol's killer.

The CIA recruits Mac to pose as an agent's pregnant wife and help bring down a drug lord selling weapons to terrorists.

Worried about Mac's well-being, Harm tries to discover what she has become involved in; Mac's cover gets blown in Paraguay.

From Sean Combs' beginnings as a young boy, to becoming "Puffy" and then "Diddy," this documentary reveals an unflinching look at the forces that shaped him - and the controversies that define him. With interviews from childhood friends, a former bodyguard, a "Making the Band" winner and Al B. Sure!, who shares his story for the first time, it sheds a new light on Diddy's personal and professional life. Featuring exclusive, never-before-seen footage of Diddy at home, in the studio and at the height of his fame, this challenges perceptions of the mogul, uncovering both his genius and the darker sides of his persona.

Weaving together the stories of five of America's most notorious serial killers: Ted Bundy, John Wayne Gacy, Jeffrey Dahmer, the Green River Killer and BTK.

Two of The Five, Gacy and Bundy, sit on death row in the mid-1980s as their murderous rampages are curtailed.

After years of evading capture, Gacy and Bundy are finally brought to justice as they both face punishment for their heinous crimes.

Preview of "Invisible Monsters: Serial Killers in America.".

From Sean Combs' beginnings as a young boy, to becoming "Puffy" and then "Diddy," this documentary reveals an unflinching look at the forces that shaped him - and the controversies that define him. With interviews from childhood friends, a former bodyguard, a "Making the Band" winner and Al B. Sure!, who shares his story for the first time, it sheds a new light on Diddy's personal and professional life. Featuring exclusive, never-before-seen footage of Diddy at home, in the studio and at the height of his fame, this challenges perceptions of the mogul, uncovering both his genius and the darker sides of his persona.

After years of evading capture, Gacy and Bundy are finally brought to justice as they both face punishment for their heinous crimes.

Homocide analyst John Allore tirelessly probes unsolved murders in his ultimate quest to uncover the fate of his sister, Theresa, found dead in Quebec's Eastern Townships region in 1979.

In 2017, police find 51-year-old Jorge Rodriguez wandering the streets with gunshot wounds near a crashed car riddled with bullet holes; to get justice for Jorge's heartbroken daughters, they follow a trail of CCTV left by the mysterious suspect.

Fraser must protect his friend from a criminal when the two men witness a jewelry heist.

When a pretzel vendor is gunned down in the park, Fraser investigates the crime, with surprising results.

Brianna Foisy, 21, and Jason Netter, 41, are killed on an Alaskan bike path in 2016; it's a crime that baffles police, until similar murders begin to happen; police follow clues in a shocking murder to track the killer.

In 2017, police find 51-year-old Jorge Rodriguez wandering the streets with gunshot wounds near a crashed car riddled with bullet holes; to get justice for Jorge's heartbroken daughters, they follow a trail of CCTV left by the mysterious suspect.

Going against orders, Harm quits JAG and journeys to Paraguay to try to rescue Mac and CIA Agent Webb.

In Modesto, a young couple in love, booked after fighting with an ex-girlfriend, faces the effects of separation anxiety; in Virginia Beach, a man who blew up a car finds himself face-to-face with a deputy from his past.

In Virginia Beach, one man is struggling to feed his kids while another is surprised to find he owes child support; over in Hancock, a woman is indignant to learn she's been arrested for getting drunk in a bar.

A grieving mother confronts the family of her son's killer; a woman is sentenced for eating donuts without paying for them; a convicted murderer is verbally confronted in court by his victim's family.

Two disgraced fishing champions apologize for cheating; grieving parents confront the former police officer who killed their son; a man suspected of driving with a suspended license appears in virtual court from a car.

The brothers of a woman murdered by her daughter confront the defendant, their niece, in court; an annoyed defendant walks out of a virtual hearing; a man convicted of manslaughter refuses to look at the grieving grandmother of his victim.

The mother of a man on trial for murder gets caught taking a picture of the jury; a defendant is held in contempt of court after flipping off the judge, twice; a judge chastises a disgraced estate attorney and more.

When Calleigh is run off the road into a canal, the evidence she is carrying becomes corrupted, so the team must uncover new evidence to solve the case.

Going against orders, Harm quits JAG and journeys to Paraguay to try to rescue Mac and CIA Agent Webb.

A severely tortured Webb teams up with Harm and Mac in Paraguay in order to find Sadik; Mac goes undercover to meet the secretary of a local CIA contact that has been leaking information to Sadik.

When Calleigh is run off the road into a canal, the evidence she is carrying becomes corrupted, so the team must uncover new evidence to solve the case.

In Modesto, a young couple in love, booked after fighting with an ex-girlfriend, faces the effects of separation anxiety; in Virginia Beach, a man who blew up a car finds himself face-to-face with a deputy from his past.

In Virginia Beach, one man is struggling to feed his kids while another is surprised to find he owes child support; over in Hancock, a woman is indignant to learn she's been arrested for getting drunk in a bar.

A grieving mother confronts the family of her son's killer; a woman is sentenced for eating donuts without paying for them; a convicted murderer is verbally confronted in court by his victim's family.

Two disgraced fishing champions apologize for cheating; grieving parents confront the former police officer who killed their son; a man suspected of driving with a suspended license appears in virtual court from a car.

The brothers of a woman murdered by her daughter confront the defendant, their niece, in court; an annoyed defendant walks out of a virtual hearing; a man convicted of manslaughter refuses to look at the grieving grandmother of his victim.

The mother of a man on trial for murder gets caught taking a picture of the jury; a defendant is held in contempt of court after flipping off the judge, twice; a judge chastises a disgraced estate attorney and more.

In Modesto, a young couple in love, booked after fighting with an ex-girlfriend, faces the effects of separation anxiety; in Virginia Beach, a man who blew up a car finds himself face-to-face with a deputy from his past.

In Virginia Beach, one man is struggling to feed his kids while another is surprised to find he owes child support; over in Hancock, a woman is indignant to learn she's been arrested for getting drunk in a bar.

A grieving mother confronts the family of her son's killer; a woman is sentenced for eating donuts without paying for them; a convicted murderer is verbally confronted in court by his victim's family.

Two disgraced fishing champions apologize for cheating; grieving parents confront the former police officer who killed their son; a man suspected of driving with a suspended license appears in virtual court from a car.

The brothers of a woman murdered by her daughter confront the defendant, their niece, in court; an annoyed defendant walks out of a virtual hearing; a man convicted of manslaughter refuses to look at the grieving grandmother of his victim.

The mother of a man on trial for murder gets caught taking a picture of the jury; a defendant is held in contempt of court after flipping off the judge, twice; a judge chastises a disgraced estate attorney and more.

A cross-country manhunt ensues when a young Australian American couple is murdered, a much-loved university professor is found dead, and two teens go missing in northern British Columbia.

Two missing teens quickly turn into the prime suspects in the murders of three people, and officers follow a trail of clues across Canada into the vast wilderness of northern Manitoba.

33-year-old Michael Scott is shot dead on the streets of downtown Baltimore; detectives are in a race against time to find the gunman before he strikes again; a trail of cameras lining the city's streets and buses may lead police to the killer.

Fraser (Paul Gross) arrests a legendary poker player and becomes entangled in a federal investigation.

Kowalski and Fraser must investigate a policeman's homicide to save the victim's wife from getting the death penalty.

In 2018, a killer shoots 33-year-old restaurant worker Joshua Webb outside an apartment block in Beckley, W.V.; to solve the murder and identify the culprit, police must unravel a web of lies by following a trail of security footage.

33-year-old Michael Scott is shot dead on the streets of downtown Baltimore; detectives are in a race against time to find the gunman before he strikes again; a trail of cameras lining the city's streets and buses may lead police to the killer.

Mac is assigned to defend a female petty officer who has been found living in Iraq as the wife of a Bedouin sheik; Harm's resignation papers are processed.

Harm goes under cover to prevent a terrorist from overthrowing the Philippine government; Bud's brother, Mikey, faces a tough choice when a fellow cadet is accused of cheating.

When Margaret's client faces an attempted murder charge, she mounts a creative defense to prove her client's innocence; Todd takes an experimental drug to find evidence; Allison finds herself in trouble and reaches out to Todd for help.

McGee's girlfriend, Delilah, turns to the team for help when she finds a break in a controversial case; McGee considers asking Delilah to move in.

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

After a celebrity is murdered at an A-list party, the team uncovers a counterfeiting ring producing $100 bills.

Mac is assigned to defend a female petty officer who has been found living in Iraq as the wife of a Bedouin sheik; Harm's resignation papers are processed.

Harm goes under cover to prevent a terrorist from overthrowing the Philippine government; Bud's brother, Mikey, faces a tough choice when a fellow cadet is accused of cheating.

After a celebrity is murdered at an A-list party, the team uncovers a counterfeiting ring producing $100 bills.

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

When Margaret's client faces an attempted murder charge, she mounts a creative defense to prove her client's innocence; Todd takes an experimental drug to find evidence; Allison finds herself in trouble and reaches out to Todd for help.

Special Agent Pride (Scott Bakula) and Gibbs follow leads after evidence suggests the Privileged Killer has a copycat; DiNozzo receives a special souvenir from Bishop.

After a celebrity is murdered at an A-list party, the team uncovers a counterfeiting ring producing $100 bills.

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

Mac is assigned to defend a female petty officer who has been found living in Iraq as the wife of a Bedouin sheik; Harm's resignation papers are processed.

Harm goes under cover to prevent a terrorist from overthrowing the Philippine government; Bud's brother, Mikey, faces a tough choice when a fellow cadet is accused of cheating.

When a Navy ID is found on a body linked to a hazardous material smuggling case, the team goes to Mexico to investigate and search for the missing materials.

In 1992, loved ones and police go to painstaking efforts to locate 26-year-old Dilleen Hempel after she goes missing while heading home from her new job.

After a man fired a gun on a local playground and seriously injured two girls, outraged parents demanded answers from local politicians as to how to stop the cycle of violence terrorizing their neighbourhoods.

In 2013, someone murders 35-year-old assistant manager Larry Wells in his office at Toys R Us; a disguised knife-wielding man appears on camera stalking the store; police must now follow the trail of surveillance footage to track down the killer.

After a voodoo priest dies, Fraser and Kowalski (Paul Gross, Callum Keith Rennie) investigate a secretive Haitian community.

Fraser sings backup for a Canadian country-western singer (Michelle Wright) who has received death threats.

When a 33-year-old restaurateur is shot dead in his backyard in an exclusive South Carolina neighborhood, CCTV cameras take detectives on the hunt for a strange woman and a mysterious vehicle seen prowling the streets.

In 2013, someone murders 35-year-old assistant manager Larry Wells in his office at Toys R Us; a disguised knife-wielding man appears on camera stalking the store; police must now follow the trail of surveillance footage to track down the killer.

Mac defends a Marine whose actions may have caused the deaths of two fellow soldiers; Harm's test flight in a spy plane turns into a dangerous mission to take photos over North Korea.

A mission to retrieve a compromised CIA agent in Libya becomes more difficult when Harm learns the agent's family needs to be rescued as well.

Lawrence and the governor seek Margaret's help with a personal legal matter related to the governor's sister.

A Marine photographer goes missing before providing testimony in a highly publicized case; Abby helps a young homeless woman.

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.

Male models' good looks may have cost them their lives; Natalia's abusive ex-husband begins stalking her at the lab.

Mac defends a Marine whose actions may have caused the deaths of two fellow soldiers; Harm's test flight in a spy plane turns into a dangerous mission to take photos over North Korea.

A mission to retrieve a compromised CIA agent in Libya becomes more difficult when Harm learns the agent's family needs to be rescued as well.

Male models' good looks may have cost them their lives; Natalia's abusive ex-husband begins stalking her at the lab.

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.

Lawrence and the governor seek Margaret's help with a personal legal matter related to the governor's sister.

When a Navy officer turns up dead on a rural road, the team must figure out if he was killed because he knew too much about an attack on a fellow officer; DiNozzo and McGee start a cleanse.

Male models' good looks may have cost them their lives; Natalia's abusive ex-husband begins stalking her at the lab.

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.

Mac defends a Marine whose actions may have caused the deaths of two fellow soldiers; Harm's test flight in a spy plane turns into a dangerous mission to take photos over North Korea.

A mission to retrieve a compromised CIA agent in Libya becomes more difficult when Harm learns the agent's family needs to be rescued as well.

After Sam's undercover mission in Sudan turns deadly, Callen and the NCIS team must track down their missing agent before it is too late.

Days after Stephanie Forster is killed near her home in Coquitlam, B.C., her estranged husband, Luigi Derossi, kills himself, but her brother believes Forster discovered Derossi's notoriety as a serial romance scammer.

Kamil Karamali reports on the life and legacy of Amanda Todd, a B.C. teen whose encounter with a cyber-predator triggered years of bullying and whose video about online harassment made her a household name.

In 2016, in Kamloops, Canada, a motel cleaner finds the body of an unidentified woman in one of the rooms; detectives turn to surveillance cameras to track a mysterious suspect in a cowboy hat, leading to a desperate manhunt across Canada.

Fraser and Ray arrest a mob boss who, in turn, threatens the Chicago Police Department with a harassment suit.

A murder-for-hire business has a unique body-disposal system.

In 2021, talented high school football star KJ Taylor is killed during a drive-by shooting outside a West Virginia convenience store; CCTV helps detectives follow the trail of the truck spotted stalking KJ's friends leading up to the shooting.

In 2016, in Kamloops, Canada, a motel cleaner finds the body of an unidentified woman in one of the rooms; detectives turn to surveillance cameras to track a mysterious suspect in a cowboy hat, leading to a desperate manhunt across Canada.

When the CIA fires Harm, he lands a job flying a crop-duster for a teenage boss; staff discovers Harm's replacement has lied about her credentials.

The admiral buries Harm in backlogged case files; a veteran (Ossie Davis) says a bureaucratic snafu forced him to steal; a submarine picks up a North Korean crew imperiled by a SARS outbreak.

When Todd agrees to help Susan's fiancé locate a missing employee, he stumbles into a case Margaret agreed to co-counsel with Gus.

The team investigates a fire on a U.S. Navy ship that was a secret detention site for indicted terrorists; Gibbs goes to his childhood home after his father's passing.

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

A politician supports the use of eminent domain to clean up a neighborhood, and his dead body is later found in an empty house.

When the CIA fires Harm, he lands a job flying a crop-duster for a teenage boss; staff discovers Harm's replacement has lied about her credentials.

The admiral buries Harm in backlogged case files; a veteran (Ossie Davis) says a bureaucratic snafu forced him to steal; a submarine picks up a North Korean crew imperiled by a SARS outbreak.

A politician supports the use of eminent domain to clean up a neighborhood, and his dead body is later found in an empty house.

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

When Todd agrees to help Susan's fiancé locate a missing employee, he stumbles into a case Margaret agreed to co-counsel with Gus.

DiNozzo is sent to Paris to bring an Admiral's daughter home, but he needs help from the team after encountering a controversial crime scene.

A politician supports the use of eminent domain to clean up a neighborhood, and his dead body is later found in an empty house.

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

When the CIA fires Harm, he lands a job flying a crop-duster for a teenage boss; staff discovers Harm's replacement has lied about her credentials.

The admiral buries Harm in backlogged case files; a veteran (Ossie Davis) says a bureaucratic snafu forced him to steal; a submarine picks up a North Korean crew imperiled by a SARS outbreak.

After a botched assignment, Hetty is forced to fire Deeks; Kensi struggles with unexpected emotions for her former partner.

Ultrasound technician and newlywed Rosemarie "Kim" Junor is stabbed in the chest by a stranger in 2015, and the subsequent trial results in a verdict that still haunts Junor's family.

A man scouring for bottles in downtown Calgary dumpsters makes a grisly discovery, and a trail of forensic evidence leads police to uncover a deadly betrayal.

In 2018, three women held hostage in a motel room by armed men face a night of terror that leaves 19-year-old Amber Meadows lying dead in the bathroom; detectives must follow a trail of surveillance footage to find out who pulled the trigger.

Fraser and Ray investigate after witnessing men in a white limousine abduct a teen girl from a shopping mall.

A female Mountie, who comes to Chicago after two murder suspects, has a strange attraction for Fraser.

In 2020, 21-year-old Dioneth Lopez goes missing while on a trip to visit friends. Her body turns up in the woodlands of Washington State. She is treated as a Jane Doe until detectives find surveillance footage that pieces together her final hour.

In 2018, three women held hostage in a motel room by armed men face a night of terror that leaves 19-year-old Amber Meadows lying dead in the bathroom; detectives must follow a trail of surveillance footage to find out who pulled the trigger.

A Marine helicopter pilot interferes with local law enforcement during a hostage standoff and is accused of violating an act which bans military action on U.S. soil.

The Navy's star pitcher (Barry Zito) faces assault charges after hitting a Marine with a ball during the annual baseball game.

When Veronica appears at the law firm requesting a favor from Todd, he agrees to help but soon realizes she may be out for revenge; Margaret is upset when she is taken off a high-stakes case.

When a lieutenant is murdered on his way to meet the president, the team must determine if his death was a targeted hit or part of a recent series of muggings.

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

Bizarre incidents take place in the CSI lab after the team begins its investigation into the death of a Santeria practitioner.

A Marine helicopter pilot interferes with local law enforcement during a hostage standoff and is accused of violating an act which bans military action on U.S. soil.

The Navy's star pitcher (Barry Zito) faces assault charges after hitting a Marine with a ball during the annual baseball game.

Bizarre incidents take place in the CSI lab after the team begins its investigation into the death of a Santeria practitioner.

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

When Veronica appears at the law firm requesting a favor from Todd, he agrees to help but soon realizes she may be out for revenge; Margaret is upset when she is taken off a high-stakes case.

When Gibbs and McGee travel to Russia to escort a computer engineer home, the mission is compromised and they must hide from a Russian mercenary group that is hunting them.

Bizarre incidents take place in the CSI lab after the team begins its investigation into the death of a Santeria practitioner.

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

A Marine helicopter pilot interferes with local law enforcement during a hostage standoff and is accused of violating an act which bans military action on U.S. soil.

The Navy's star pitcher (Barry Zito) faces assault charges after hitting a Marine with a ball during the annual baseball game.

The team searches for a dangerous device that was stolen from a college research facility; Sam looks for a popular Christmas gift for his daughter.

Senior crime reporters provide updates on a few stories they previously covered; they share several significant developments - including a major decision made by the Supreme Court of Canada that's impacted multiple murder cases across the country.

A sexual predator on the loose in the 1970s and 1980s; two little girls are attacked by the "Southwest Calgary Rapist" while riding their bikes one hot sunny day; homicide investigators were on the trail for a killer.

On Valentine's Day, police discover Demetrius Graves fatally stabbed on the street; two days later, Bonnie Ross turns up dead at home; a trail of CCTV evidence uncovers that these two very different people share one fateful connection.

Ice-fisherman Fraser catches a corpse, finds another, and gets chased by bad guys with grenade launchers.

Fraser and Kowalski pursue an arms dealer to the Yukon, where they join forces with Buck Frobisher's (Leslie Nielsen) detachment.

In 2010, three men are murdered in a convenience store in Minneapolis's Somali community; the store's CCTV system uncovers evidence of a robbery gone wrong; footage from cameras around the city could offer clues to the killer's identity.

On Valentine's Day, police discover Demetrius Graves fatally stabbed on the street; two days later, Bonnie Ross turns up dead at home; a trail of CCTV evidence uncovers that these two very different people share one fateful connection.

Harm and Mac board a destroyer to investigate the death of a sailor who was electrocuted while servicing a radar antenna; the admiral assigns Coates the task of coordinating the details of his upcoming wedding.

Turner faces charges of racial bias; Harm petitions the court to get custody of teenage Mattie Grace; Coates tries to engineer a Christmas miracle for Adm. Chegwidden and Lt. Sims.

Margaret represents a gifted 17-year-old hacker charged with releasing classified defense documents; Todd is tasked with babysitting the teen hacker for the duration of the trial.

The NCIS team pairs up with the FBI when a research scientist is murdered and the primary suspect is wanted by the Russian government.

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.

A man is decapitated while performing a stunt, and Horatio believes his death was more than just an accident when he learns the hydraulics system had been tampered with.