A stranger with a bomb appears at the law firm demanding Margaret reverse her efforts to free her client on death row.

When a Marine's wife kills the intruder who tried to rape her, Gibbs and his team realize they are tracking a serial rapist and killer who uses a racy website to stalk his prey.

While investigating a kidnapping and murder, the team finds a safe with dozens of pictures of missing women; as the team tries to find Boa Vista's kidnapped sister, Horatio must find the killer.

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.

Mac and Brumby find themselves defending positions with which they don't agree in the appellate trial of a Marine accused of killing three fellow servicemen.

Harm is trapped in the brig aboard a sabotaged and sinking ship with an accused murderer and his guard.

Callen and Sam go undercover to track an engineer attempting to sell classified information; Deeks plans a surprise for Kensi and her friends.

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.

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.

In Kentucky, 13-year-old David Oakley comes home to find his stepmother murdered and his 15-year-old sister Jenna missing; Police race to piece together a killer's video trail, only to uncover a brutal plot.

Ray and his fellow officers seek revenge against the mob boss they think killed Detective Guardino, but Ray falls for the don's sister.

A real-estate tycoon wants to turn Fraser's apartment building into an upscale condominium; Ray bumps into his ex-wife.

In 2013, Kira Steger goes missing after a date night with her husband at the Mall of America; after a shocking discovery in a parking lot, investigators fear foul play; they turn to mall security footage in the hopes of solving this mysterious case.

In Kentucky, 13-year-old David Oakley comes home to find his stepmother murdered and his 15-year-old sister Jenna missing; Police race to piece together a killer's video trail, only to uncover a brutal plot.

Conflict continues out of court in the desertion and murder trial taking place in Australia as Mac turns her attention to Mic.

Conflict continues out of court in the desertion and murder trial taking place in Australia as Mac turns her attention to Mic.

Margaret represents Lauren, Susan's good friend, in a hostile work environment lawsuit after she quits her job at a Michelin-starred restaurant; when Todd gets sick, Margaret must go undercover as a dishwasher in a fancy restaurant.

As the team searches for a terrorist targeting the Navy, a bug is found in a probationary agent's tooth; Jimmy Palmer has a bachelor party.

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.

The team's investigation into the death of a young woman, killed after being auctioned off at a charity event, leads to a plot that could put the entire city in jeopardy.

Conflict continues out of court in the desertion and murder trial taking place in Australia as Mac turns her attention to Mic.

Conflict continues out of court in the desertion and murder trial taking place in Australia as Mac turns her attention to Mic.

The team's investigation into the death of a young woman, killed after being auctioned off at a charity event, leads to a plot that could put the entire city in jeopardy.

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.

Margaret represents Lauren, Susan's good friend, in a hostile work environment lawsuit after she quits her job at a Michelin-starred restaurant; when Todd gets sick, Margaret must go undercover as a dishwasher in a fancy restaurant.

Tony goes undercover as an escaped prisoner chained to a convict who holds the key to recovering stolen Iraqi art, but when his GPS device fails, the team must find other ways to locate him.

The team's investigation into the death of a young woman, killed after being auctioned off at a charity event, leads to a plot that could put the entire city in jeopardy.

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.

Conflict continues out of court in the desertion and murder trial taking place in Australia as Mac turns her attention to Mic.

Conflict continues out of court in the desertion and murder trial taking place in Australia as Mac turns her attention to Mic.

The team investigates when a defense contractor designing a nuclear attack weapon is suspected, by her husband, of selling Navy secrets to a foreign government.

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.

A dispute outside a Toronto tavern between a jealous boyfriend and several gang members ends in a hail of gunfire, in which a young woman new to the city is killed, and the missing gun turns up in an unrelated crime.

Police are called to the scene of a traffic accident in West Chester, Pa. where 18-year-old Bianca Roberson is found dead at the wheel of her car; an autopsy reveals a sinister crime.

Fraser and Ray join forces with a Mexican secret-service agent to protect the leaders of a NAFTA summit from a political assassin.

In an attempt to avert an accident, Fraser causes a farmer to lose thousands of eggs; Ray and Francesca battle over lottery winnings.

In March 2014, the bodies of two women lie behind a grocery store in Galveston, Texas; A trail of surveillance footage could possibly reveal who killed two women and why.

Police are called to the scene of a traffic accident in West Chester, Pa. where 18-year-old Bianca Roberson is found dead at the wheel of her car; an autopsy reveals a sinister crime.

Gunny is arrested for gay bashing following an off-duty altercation; Tiner's sexuality comes into question.

Korean terrorists, demanding restitution for war crimes against civilians, hijack Harm and Mac's plane.

Margaret must represent Chuck when he faces 20 years in federal prison after being accused of fixing a cash prize giveaway at the Portland Widows hockey game; Lyle finds a new love interest in a forensic accountant.

Shaken by terrorism, the NCIS faces devastating surprises; the case impacts Jimmy Palmer's destination wedding.

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

When a Marine recruiter is murdered, the team delves into the world of military enlistment to try to find the killer; Natalia must face her ex-husband when he asks out one of her co-workers.

Gunny is arrested for gay bashing following an off-duty altercation; Tiner's sexuality comes into question.

Korean terrorists, demanding restitution for war crimes against civilians, hijack Harm and Mac's plane.

When a Marine recruiter is murdered, the team delves into the world of military enlistment to try to find the killer; Natalia must face her ex-husband when he asks out one of her co-workers.

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

Margaret must represent Chuck when he faces 20 years in federal prison after being accused of fixing a cash prize giveaway at the Portland Widows hockey game; Lyle finds a new love interest in a forensic accountant.

Gibbs and the NCIS team work with a notorious private detective during an investigation of a naval officer found murdered at the bottom of a lake.

When a Marine recruiter is murdered, the team delves into the world of military enlistment to try to find the killer; Natalia must face her ex-husband when he asks out one of her co-workers.

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

Gunny is arrested for gay bashing following an off-duty altercation; Tiner's sexuality comes into question.

Korean terrorists, demanding restitution for war crimes against civilians, hijack Harm and Mac's plane.

The NCIS team must work with Hetty's former Vietnam War colleagues after a highly decorated Navy captain kidnaps a Veterans Affairs administrator who has been siphoning funds.

Homicide 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.

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.

In 2014, graduate student Tequila Suter is stabbed to death in her suburban Buffalo home; investigators' only hope of solving the case is to piece together a trail of CCTV across town and follow in the footsteps of a killer.

Ian, a pathological liar, comes to Ray and Fraser for help in finding his girlfriend, who has allegedly been abducted by aliens.

Fraser dons a dress to investigate the disappearance of a student at an all-girl Catholic school; Ray reunites with an old flame who believes she has become a nun because of him.

In Fontana, Calif., a bizarre traffic accident takes the life of 18-year-old Cristian Dominguez Aguilar; the driver vanishes into thin air, so police turn to surveillance video for answers.

In 2014, graduate student Tequila Suter is stabbed to death in her suburban Buffalo home; investigators' only hope of solving the case is to piece together a trail of CCTV across town and follow in the footsteps of a killer.

A woman claims she fled the Navy because her recruiter lied to her; Harm defends the woman accused of desertion; side-effects of Viagra threaten a man's career.

Mac is charged with misconduct and breach of ethics when she admits to looking at evidence forbidden to the prosecution.

When Margaret is too sick to work on the final day of an important negotiation, Todd must step in and impersonate a lawyer while Margaret uses her investigative skills; Margaret and Gus share their first kiss.

Following the bombing of NCIS headquarters, the team engages in a cross-agency manhunt for Harper Dearing.

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.

The team must find a suspected terrorist, who goes on the run after a failed attempt on her life.

A woman claims she fled the Navy because her recruiter lied to her; Harm defends the woman accused of desertion; side-effects of Viagra threaten a man's career.

Mac is charged with misconduct and breach of ethics when she admits to looking at evidence forbidden to the prosecution.

The team must find a suspected terrorist, who goes on the run after a failed attempt on her life.

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.

When Margaret is too sick to work on the final day of an important negotiation, Todd must step in and impersonate a lawyer while Margaret uses her investigative skills; Margaret and Gus share their first kiss.

The team investigates a telemarketer's report of the murder of a petty officer after hearing it over the phone, and it appears to be a hoax until the body of the officer is found.

The team must find a suspected terrorist, who goes on the run after a failed attempt on her life.

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.

A woman claims she fled the Navy because her recruiter lied to her; Harm defends the woman accused of desertion; side-effects of Viagra threaten a man's career.

Mac is charged with misconduct and breach of ethics when she admits to looking at evidence forbidden to the prosecution.

The NCIS team works with Hetty's former Vietnam War colleagues, A.J. Chegwidden, Sterling Bridges and Charles Langston, on a gold heist investigation.

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.

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

In May 2013, 36-year-old Army veteran Maribel Ramos disappears from her Orange, Calif. apartment without a trace; suspecting foul play, investigators devise a unique surveillance strategy to track her down and uncover some disturbing evidence.

Ray and Fraser apprehend a teenager for a shooting offence, then become convinced they have arrested the wrong man, even though he insists he is guilty.

Terrorists take over a train carrying Fraser, Meg and a group of singing mounties; while the FBI dithers about, Fraser, Inspector Thatcher and Buck Frobisher work against the hijackers from the inside.

In Farmville, North Carolina, three family members working at a convenience store fall victim to the most cold-blooded crime the town has ever seen; detectives attempt to pick up the killers' video trail and put an end to their bloody spree.

In May 2013, 36-year-old Army veteran Maribel Ramos disappears from her Orange, Calif. apartment without a trace; suspecting foul play, investigators devise a unique surveillance strategy to track her down and uncover some disturbing evidence.

The shocking rise and fall of Paolo Macchiarini, the superstar celebrity surgeon who ascended to global fame after performing the world's first synthetic organ transplant, only to be exposed as an international con man. His web of lies spanned decades, ensnared many, including those in his personal life, leaving a trail of devastated patients to grapple with a nightmare.

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.

The stories of serial killers Ted Bundy, John Wayne Gacy, Jeffrey Dahmer, the Green River Killer and BTK, and what was happening in communications, law enforcement, media, forensics, and technology that allowed them to proliferate and evade capture.

The stories of serial killers Ted Bundy, John Wayne Gacy, Jeffrey Dahmer, the Green River Killer and BTK, and what was happening in communications, law enforcement, media, forensics, and technology that allowed them to proliferate and evade capture.

The shocking rise and fall of Paolo Macchiarini, the superstar celebrity surgeon who ascended to global fame after performing the world's first synthetic organ transplant, only to be exposed as an international con man. His web of lies spanned decades, ensnared many, including those in his personal life, leaving a trail of devastated patients to grapple with a nightmare.

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.

The stories of serial killers Ted Bundy, John Wayne Gacy, Jeffrey Dahmer, the Green River Killer and BTK, and what was happening in communications, law enforcement, media, forensics, and technology that allowed them to proliferate and evade capture.

The shocking rise and fall of Paolo Macchiarini, the superstar celebrity surgeon who ascended to global fame after performing the world's first synthetic organ transplant, only to be exposed as an international con man. His web of lies spanned decades, ensnared many, including those in his personal life, leaving a trail of devastated patients to grapple with a nightmare.

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.

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.

Sixteen-year-old Diamond Bradley mystifies her family when she suddenly disappears; detectives hope surveillance footage will lead them to the missing girl, but the trail Diamond leaves behind is more terrifying than anyone expected.

An exotic dancer tips off Fraser and Ray about mobsters taking over Chicago strip joints; with Milton Berle.

The people close to Ray are placed at risk when a man whom he helped place behind bars is released on parole; Internal Affairs investigates Ray.

In 2017, a neighbor finds the body of 40-year-old Dawn Meade outside an apartment complex in Louisa, Va.; detectives must determine if this is an accidental death or something more sinister, so they turn to surveillance footage to uncover the truth.

Sixteen-year-old Diamond Bradley mystifies her family when she suddenly disappears; detectives hope surveillance footage will lead them to the missing girl, but the trail Diamond leaves behind is more terrifying than anyone expected.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

A high-speed chase across three states; a woman pulled over for speeding flees the scene but still manages to obey traffic laws; suspected auto thieves flee a hit-and-run to hide on a golf course.

Engaging in a deadly gun battle at the end of a high-speed pursuit; tracking down a car thief who's attempting a water escape in a stolen kayak; outwitting a fugitive driving recklessly on a motorcycle.

An accused car thief jumps off a 36-foot bridge to avoid capture; an armed fugitive on the run breaks into a building full of law school students; a DUI suspect flees by car, foot, and water before deputies capture him.

A wanted felon smashes into a state trooper's car while fleeing from local police and county deputies; police get into a shootout with a man wanted for murdering his roommate; a deputy's PIT maneuver knocks a fugitive's car up on two wheels.

A man out on bond leads police on a high-speed chase down the wrong side of the highway; officers try to engage with a shoplifting suspect during a highway standoff; a convicted child sex abuser steals a Homeland Security vehicle.

Law enforcement officers pursue fugitives on the run; deputies race to extract a mother and her daughters from their truck after a fleeing suspect crashes into them; fish and wildlife officers pursue a fugitive attempting to escape by swimming away.

Law enforcement officers pursue fugitives on the run; 911 operators receive a call in the middle of a road rage incident; state troopers pursue a man wanted for domestic assault and fleeing with his 6-year-old son in the car.

Police exchange gunfire in the streets of Tampa with a man wanted for stabbing his wife; a State Trooper performs a PIT Maneuver on a fleeing hit-and-run suspect; police get in a chase with two men wanted for armed carjacking.

Police and Highway Patrol pull a shoplifting suspect to safety after he hangs from a highway overpass; deputies, air units and K-9 officers chase down a suspect on foot and in the water.

Law enforcement officers pursue fugitives on the run; a woman accused of shoplifting rams a police cruiser and leads officers on a dangerous high speed chase.

Law enforcement officers pursue fugitives on the run; deputies get in a high-speed chase with a man wanted for shooting a highway patrolman and stealing his cruiser; officers pursue a fugitive who's driving recklessly.

Law enforcement officers pursue fugitives on the run; a man wanted for carjacking runs out of the road during a high-speed chase; an officer climbs on the hood of a car while trying to prevent a fugitive from fleeing.

After a business owner is gunned down on Christmas night, police begin to connect the murder to a string of recent burglaries; two teen boys become the prime suspects in the case of their father's murder.

In a small town in Maryland, a daughter becomes a suspect when her father is found murdered; police must sort through a tangled web of lies and manipulation when a woman's husband is murdered after she openly engages in an affair with a teenager.

A teen couple plan for careers in the military, but infidelity leads the lovers down a twisted path; a mother of twin daughters is found murdered in her Georgia home.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

"Fugitives Caught on Tape" follows law enforcement officers as they pursue fugitives on the run. With access to a multitude of cameras including body and dash cams, security and traffic cams, personal doorbell footage, smartphone cams and more, viewers get a look at how agencies track down fleeing suspects.

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.

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.

When someone murders a Tennessee state trooper in the middle of a highway, investigators turn to his dashcam for answers; a manhunt quickly gets underway, but it takes even more surveillance video to pick up a killer's trail and crack the case.

Ray becomes jealous when Fraser gets all the media attention during a terrorist's trial, but both lawmen take center stage after they are held as hostages.

Fraser develops amnesia when he is thrown from the back of a speeding van; Ray struggles to help his partner regain his memory.

The police lack leads after single mom Laura Ackerson leaves for work one morning and never returns, so they turn to surveillance cameras to try to locate her and unearth sinister footage.

When someone murders a Tennessee state trooper in the middle of a highway, investigators turn to his dashcam for answers; a manhunt quickly gets underway, but it takes even more surveillance video to pick up a killer's trail and crack the case.

A mishap blamed on Bud's brother during a training exercise ignites a tense conflict with international ramifications between the Navy and the Marines.

Harm, Mac and Webb race to avert a Russian assassination; a Russian comrade reveals a secret to Harm.

Margaret and Todd tackle a case involving a murder on live local morning news and must rethink their working relationship after Todd decides to open his own private investigator business.

The team investigates when the body of an NCIS facilities manager is found four months after she went missing; as the team faces mandatory psych evaluations, Gibbs is concerned about Abby's recurring nightmares.

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

Hijackers take a truck full of confiscated weapons, and Horatio links the crime to Clavo Cruz; a confiscated missile launched into the courthouse helps Clavo escape; a member of Horatio's team is fatally shot.

A mishap blamed on Bud's brother during a training exercise ignites a tense conflict with international ramifications between the Navy and the Marines.

Harm, Mac and Webb race to avert a Russian assassination; a Russian comrade reveals a secret to Harm.

Hijackers take a truck full of confiscated weapons, and Horatio links the crime to Clavo Cruz; a confiscated missile launched into the courthouse helps Clavo escape; a member of Horatio's team is fatally shot.

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

Margaret and Todd tackle a case involving a murder on live local morning news and must rethink their working relationship after Todd decides to open his own private investigator business.

When bodies found stuffed in a barrel are identified as a prosecutor and a sheriff who worked on a rape and murder case with Ducky 10 years ago, Gibbs believes Ducky may be the next target.

Hijackers take a truck full of confiscated weapons, and Horatio links the crime to Clavo Cruz; a confiscated missile launched into the courthouse helps Clavo escape; a member of Horatio's team is fatally shot.

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

A mishap blamed on Bud's brother during a training exercise ignites a tense conflict with international ramifications between the Navy and the Marines.

Harm, Mac and Webb race to avert a Russian assassination; a Russian comrade reveals a secret to Harm.

Sam Hanna goes rogue from the NCIS team in an attempt to stop Tahir Khaled from ever targeting his family again.

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.

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.

Michelle Mockbee arrives at work early in order to get ahead on payroll, and she is murdered outside her office less than an hour later; detectives follow the surveillance footage to a closet full of dirty secrets.

Fraser returns from vacation to a blazing apartment and a new partner, Stanley Ray Kowalski.

Fraser helps Kowalski confront a demon from his past; Internal Affairs investigates the detective division.

On July 5, 2011, a young couple on their way home from a night of birthday celebrations is shot while getting gas; with the killers long since vanished, detectives must rely on the grainy gas station video to unravel a senseless act of evil.

Michelle Mockbee arrives at work early in order to get ahead on payroll, and she is murdered outside her office less than an hour later; detectives follow the surveillance footage to a closet full of dirty secrets.

Harm discovers that Sergei is framed for a crime punishable by death; Mac arrives in Russia to prevent a presidential assassination.

Harm and Bud's investigation leads them to Cuba and a meeting with Castro when the captain of a U.S. Navy frigate rescues a girl in Cuban waters.

As Margaret and Todd work on two separate cases, Todd suspects a crime is happening in the courthouse right under their noses.

Ducky orders the exhumation of a body from a 12-year-old case; the team investigates a Marine's death.

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.

A member of the team fights for his life after being shot in the head; the hunt for Clavo Cruz continues.

Harm discovers that Sergei is framed for a crime punishable by death; Mac arrives in Russia to prevent a presidential assassination.

Harm and Bud's investigation leads them to Cuba and a meeting with Castro when the captain of a U.S. Navy frigate rescues a girl in Cuban waters.

A member of the team fights for his life after being shot in the head; the hunt for Clavo Cruz continues.

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.

As Margaret and Todd work on two separate cases, Todd suspects a crime is happening in the courthouse right under their noses.

A computer expert (Danica McKellar) claims to have witnessed a murder in the apartment across the way, but investigators find no physical evidence of a crime.

A member of the team fights for his life after being shot in the head; the hunt for Clavo Cruz continues.

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.

Harm discovers that Sergei is framed for a crime punishable by death; Mac arrives in Russia to prevent a presidential assassination.

Harm and Bud's investigation leads them to Cuba and a meeting with Castro when the captain of a U.S. Navy frigate rescues a girl in Cuban waters.

When Sam's wife, Michelle, is taken from her home, the kidnappers demand that Sam's arch nemesis, Tahir Khaled, be released from prison in exchange for Michelle's whereabouts.

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 a hot August day in 2015, 33-year-old Myles Gray travels from the Sunshine Coast to Vancouver in his company truck to make his usual delivery of fresh greenery to wholesale florists.

In Alexandria, Va., Nancy Dunning, Ronald Kirby and Ruthanne Lodato are all fatally shot in broad daylight by a gunman knocking at the front door; detectives attempt to use security footage to track down the killer before they strike again.

Fraser and Kowalski try to thank a man for saving a boy's life and inadvertently reveal his identity as a federal witness.

Fraser and Kowalski protect Kowalski's ex-wife and her new boyfriend, a politician who has been receiving death threats.

On March 27, 2015, Tierra Hall hugs her mother goodbye for the last time; 24 hours later, the teenager's dead body is discovered outside an abandoned house.

In Alexandria, Va., Nancy Dunning, Ronald Kirby and Ruthanne Lodato are all fatally shot in broad daylight by a gunman knocking at the front door; detectives attempt to use security footage to track down the killer before they strike again.

When two naval aviators are killed in the crash of their upgraded F-14 jet, Harm uncovers improprieties with the civilian contractor and the Navy liaison.

As Mac prepares for her first televised prosecution, she learns that her opponent is Juanita Ressler who was her professor in law school.

Margaret and Todd defend the "Queen of Hearts," a notoriously unscrupulous lawyer accused of orchestrating a fraudulent accident that resulted in the death of a "fake victim.".

When a helicopter crew's training mission ends in a disastrous crash, the NCIS team must figure out what happened and find the missing pilot; Ziva challenges McGee and Tony to a dare.

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.

The team investigates when the parents of a baby sitter in an upscale neighborhood are murdered; key evidence leads Horatio to expose a doctor who has dirty secrets.

When two naval aviators are killed in the crash of their upgraded F-14 jet, Harm uncovers improprieties with the civilian contractor and the Navy liaison.

As Mac prepares for her first televised prosecution, she learns that her opponent is Juanita Ressler who was her professor in law school.

The team investigates when the parents of a babysitter in an upscale neighborhood are murdered; key evidence leads Horatio to expose a doctor who has dirty secrets.

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.

Margaret and Todd defend the "Queen of Hearts," a notoriously unscrupulous lawyer accused of orchestrating a fraudulent accident that resulted in the death of a "fake victim.".

A Marine records his own death on video, as he falls off a cliff during a camping trip with his wife and his best friend, and Abby tries to reconstruct the camera, putting her technical skills to the test.

The team investigates when the parents of a babysitter in an upscale neighborhood are murdered; key evidence leads Horatio to expose a doctor who has dirty secrets.

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.

When two naval aviators are killed in the crash of their upgraded F-14 jet, Harm uncovers improprieties with the civilian contractor and the Navy liaison.

As Mac prepares for her first televised prosecution, she learns that her opponent is Juanita Ressler who was her professor in law school.

When Hetty turns in retirement papers and disappears, Shay Mosley comes to Los Angeles to oversee the team and makes staffing changes; Sam insists that Callen find a new partner.

Neville-Lakes' three children were killed by a drunk driver, Marco Muzzo, in a crash in Vaughan back in 2015; the driver, the son of a wealthy family, was sentenced to ten years in jail but is now out on parole while the mother is left grieving.

Chelsea Poorman vanished from downtown Vancouver in September 2020; nineteen months later, her body was found in the backyard of a vacant mansion in one of the city's ritziest neighborhoods.

In 2019, after a night out with friends, college student Samantha Josephson climbs into a car she mistakes for her rideshare, never to be seen alive again; with little to go on, police must rely on CCTV footage to help pick up the killer's trail.

Kowalski and Fraser begin an investigation that reveals the dark side of boxing after one of Kowalski's students injures someone in the ring.

While the police force is on strike, Fraser and Kowalski help a bounty hunter find a bail jumper from Montana.

In May 2019 in Cedar Rapids, Iowa, a shooter opens fire on four teenagers in a parked car then escapes with the help of a getaway driver.

In 2019, after a night out with friends, college student Samantha Josephson climbs into a car she mistakes for her rideshare, never to be seen alive again; with little to go on, police must rely on CCTV footage to help pick up the killer's trail.

An Arabian princess elopes with a Navy petty officer, setting off an international scandal; Mac is assigned to represent the Arab princess at an INS hearing and before an Islamic court.

Harm and Mac find themselves on opposite sides of the high-profile court-martial of Adm. Boone, who finally speaks up about the alleged massacre.

While in the hospital recovering from an emergency appendectomy, Todd is convinced he overheard a plot to murder someone; Todd gets to meet his personal guru, Dick Franks, a grizzled veteran private investigator who shares the hospital room with him.

When a petty officer is shot in a billionaire's car, the investigation leads the team to Gibbs' namesake.

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.

Evidence suggests foul play after a member of a hunting group is mauled by a bear.

An Arabian princess elopes with a Navy petty officer, setting off an international scandal; Mac is assigned to represent the Arab princess at an INS hearing and before an Islamic court.

Harm and Mac find themselves on opposite sides of the high-profile court-martial of Adm. Boone, who finally speaks up about the alleged massacre.

Evidence suggests foul play after a member of a hunting group is mauled by a bear.

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.

While in the hospital recovering from an emergency appendectomy, Todd is convinced he overheard a plot to murder someone; Todd gets to meet his personal guru, Dick Franks, a grizzled veteran private investigator who shares the hospital room with him.

When a female petty officer is found dead in the bed of a dance club bartender, the team suspects the officer's sister (Mya Harrison).

Evidence suggests foul play after a member of a hunting group is mauled by a bear.

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.

An Arabian princess elopes with a Navy petty officer, setting off an international scandal; Mac is assigned to represent the Arab princess at an INS hearing and before an Islamic court.

Harm and Mac find themselves on opposite sides of the high-profile court-martial of Adm. Boone, who finally speaks up about the alleged massacre.

During the murder investigation of a Navy Lieutenant on leave in Los Angeles, the team uncovers classified surveillance briefs she smuggled into the city that may have been sold to a foreign buyer.

A man walking his dog comes upon a neighbor's garage engulfed in flames; when the smoke clears, a woman is found dead with drug paraphernalia nearby; nothing is what it seems, and police are left combing through a web of lies to find the killer.

A man walking his dog comes upon a neighbor's garage engulfed in flames, and when the smoke clears, a woman is found dead with drug paraphernalia nearby; police are left combing through a web of lies to find the killer.

In September 2014, an Iowa college town panics after police find Tong Shao, a missing student from China, murdered; when security camera footage points to a planned execution, hunting down the young woman's killer becomes an international mystery.

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 2009 in Tracy, Calif., a little girl vanishes after playing at a friend's house, leaving her family desperate for answers; with no leads and few clues, investigators must rely on surveillance footage to piece together the horrifying truth.

In September 2014, an Iowa college town panics after police find Tong Shao, a missing student from China, murdered; when security camera footage points to a planned execution, hunting down the young woman's killer becomes an international mystery.

Harm's father's old wingman is up for a command post, but information from an informant spurs an investigation in which Mac and Harm begin to uncover damaging evidence; a top admiral is accused of massacring civilians during the Vietnam War.

Bud sues Harriet's obstetrician for the death of their baby; he inadvertently forces his wife to reveal a devastating secret publicly.

Margaret and Todd defend international opera star, supreme diva and Lyle's mother, Jaqueline.

When a Navy lieutenant is killed in a brutal attack shortly after returning home from the Middle East, the team questions the victim's friend, a Marine captain with post-traumatic stress disorder.

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

When a wealthy real-estate developer is killed, the team suspects his wife, then realizes that she is a triplet with identical sisters.

Harm's father's old wingman is up for a command post, but information from an informant spurs an investigation in which Mac and Harm begin to uncover damaging evidence; a top admiral is accused of massacring civilians during the Vietnam War.