After TikTok influencer Nikki Kuhnhausen vanishes, her friends, family and transgender allies across Vancouver demand justice; Nikki's family describes the brave and beautiful 17-year-old and how the police uses Nikki's Snapchat account to find her.

In 2006, Elizabeth Shoaf was abducted near her rural home; the teenager was missing for over a week when a text message came through that infused hope into the case; the dark details of Elizabeth's frightening ordeal from those closest to her.

When Becky Koster returns home from a night out, she texts her mother, Barbara, that she made it back safely; however, when Barbara arrived home hours later, Becky was nowhere to be found; Barbara recalls the gut-wrenching search for her daughter.

When Deserae Turner doesn't come home after school, her mother and friends begin texting her incessantly; a massive search ensues and 47 of her friends are questioned; her Snapchat turns out to be the key to the mystery.

After TikTok influencer Nikki Kuhnhausen vanishes, her friends, family and transgender allies across Vancouver demand justice; Nikki's family describes the brave and beautiful 17-year-old and how the police uses Nikki's Snapchat account to find her.

In 2006, Elizabeth Shoaf was abducted near her rural home; the teenager was missing for over a week when a text message came through that infused hope into the case; the dark details of Elizabeth's frightening ordeal from those closest to her.

When Becky Koster returns home from a night out, she texts her mother, Barbara, that she made it back safely; however, when Barbara arrived home hours later, Becky was nowhere to be found; Barbara recalls the gut-wrenching search for her daughter.

In 2004, a young Calgary family settled in for the evening; at about 9 pm, the husband left for work as a security guard, while his wife stayed home with their two children; in the middle of the night, she woke to the sound of shattered glass and within minutes the entire home was engulfed in flames; after desperate attempts to reach her children failed, the mother managed to escape; senior crime reporter Nancy Hixt shares the unexpected twists the investigation took into who was responsible.

On her first day back, Andy is forced to work a bank robbery case with newly promoted Swarek; a distraught woman gives Nick perspective on his life with Gail; a bombshell is dropped on Noelle.

Andy and Officer Cruz butt heads when a disturbed woman forces them to make a crucial decision; an armed burglar is sought after a string of ATM robberies; Dov and Chloe have to work together.

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 the summer of 1994, a night out in Miami turns deadly for two young women and a popular nightclub owner; with little evidence found on the scene, investigators must rely on a hidden home video camera to help solve this mystery.

In 2018, 59-year-old Pamela Hutchinson is found dead in her Florida condo; the search for answers leads police to a mysterious woman spotted on CCTV; when the suspect is linked to yet another murder, it sparks a nationwide manhunt and media frenzy.

While searching for Agent Clayton Webb's killer, Harm and Mac stumble upon a rogue government spy agency.

Lt. Curtis Rivers is captured by separatists who threaten to hang him for his apparent part in the death of a 14-year-old boy.

After McGarrett's CIA agent friend is killed, he lets himself be captured by the group he thinks is responsible to find the killer; Tani questions whether she should tell McGarrett about the murder weapon she found at Adam's house.

The team finds a problem with the DNA samples collected while investigating the crash of a military plane that was transporting caskets.

Ziva and Gibbs head to a missing Marine's last-known whereabouts in Afghanistan; Tony's fears are revealed.

When a wealthy man hires Magnum and Higgins to find his missing wife, they are stunned when a tragedy occurs as a result of their investigation; Kumu is suspicious of her stepdaughter's boyfriend.

While searching for Agent Clayton Webb's killer, Harm and Mac stumble upon a rogue government spy agency.

Lt. Curtis Rivers is captured by separatists who threaten to hang him for his apparent part in the death of a 14-year-old boy.

When a wealthy man hires Magnum and Higgins to find his missing wife, they are stunned when a tragedy occurs as a result of their investigation; Kumu is suspicious of her stepdaughter's boyfriend.

After McGarrett's CIA agent friend is killed, he lets himself be captured by the group he thinks is responsible to find the killer; Tani questions whether she should tell McGarrett about the murder weapon she found at Adam's house.

On Halloween, Jerry and his friends search his childhood camp for evidence to a murder he witnessed as a boy; McGarrett investigates a little girl who drew pictures depicting the scene of a recent murder before it was discovered.

Ducky goes under cover to stop the illegal sale of the Navy's top-secret weapons system to a high-priority arms dealer (Armand Assante).

The NCIS team must track down a wanted terrorist (Enzo Cilenti) who has obtained a missing chemical weapon before he carries out his plan to attack major U.S. cities.

Sam fears for his family's safety when his wife is called to resume a former CIA cover after a case suggests ties to the infamous Sidorov and his stolen nuke.

While searching for Agent Clayton Webb's killer, Harm and Mac stumble upon a rogue government spy agency.

Lt. Curtis Rivers is captured by separatists who threaten to hang him for his apparent part in the death of a 14-year-old boy.

When a wealthy man hires Magnum and Higgins to find his missing wife, they are stunned when a tragedy occurs as a result of their investigation; Kumu is suspicious of her stepdaughter's boyfriend.

Susan Tice and Erin Gilmour are found dead and assaulted; the women don't know each other and both cases remain unsolved for decades; 40 years later, the killer is arrested, charged and convicted thanks to genetic genealogy research.

During a routine traffic stop, Gail and Andy find a teenage boy bound and gagged in the trunk of a car; Oliver, Chris and Swarek track a gunman.

When an arrest reveals that drugs contaminated with a deadly bacteria have hit the street, the squad rushes to control the situation; Marlo reveals a shocking secret; Dov suspects Chloe of hiding secrets.

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.

In 2018, 59-year-old Pamela Hutchinson is found dead in her Florida condo; the search for answers leads police to a mysterious woman spotted on CCTV; when the suspect is linked to yet another murder, it sparks a nationwide manhunt and media frenzy.

Natasha Cournoyer, 37, disappears without a trace in Laval, Canada; as her friends and family struggle for answers, detectives must follow a stone-cold trail to uncover her final footsteps caught on surveillance cameras.

When Harm and Mac investigate an international incident on a nuclear submarine, their relationship is tested by the cramped quarters.

Harm and a Navy Reserve pathologist investigate the death of a child whose body was found on a military base.

On Halloween, Jerry and his friends search his childhood camp for evidence to a murder he witnessed as a boy; McGarrett investigates a little girl who drew pictures depicting the scene of a recent murder before it was discovered.

Anthony DiNozzo Sr. (Robert Wagner) is found in a car with no memory of the previous night and a dead body in the trunk; Tony goes against orders as he tries to establish his father's innocence.

When a Navy captain is killed, the team must find and protect his pregnant companion; Jimmy brings his fiancee's father to work.

When an overenthusiastic neighborhood watch group asks Magnum and Higgins to investigate a shady character living on their block, they are shocked to find that they may have inadvertently stumbled upon a serial killer on the loose.

When Harm and Mac investigate an international incident on a nuclear submarine, their relationship is tested by the cramped quarters.

Harm and a Navy Reserve pathologist investigate the death of a child whose body was found on a military base.

When an overenthusiastic neighborhood watch group asks Magnum and Higgins to investigate a shady character living on their block, they are shocked to find that they may have inadvertently stumbled upon a serial killer on the loose.

On Halloween, Jerry and his friends search his childhood camp for evidence to a murder he witnessed as a boy; McGarrett investigates a little girl who drew pictures depicting the scene of a recent murder before it was discovered.

McGarrett crosses the line and is arrested while investigating the death of his former SEAL buddy who died while making an emergency landing on an aircraft carrier; Adam returns to Oahu with devastating news about his marriage.

When a young sailor's body is found in an abandoned building in a seedy part of town, an ominous message written in blood leads the team to switch gears to find the killer.

The NCIS team suspects foul play when a Navy lieutenant is the victim of radiation poisoning; Tony sees a softer side of Ziva.

Callen and Sam work with NCIS: Red, a mobile team of agents, when a murder weapon in Idaho matches one used in a national security case in Los Angeles.

When Harm and Mac investigate an international incident on a nuclear submarine, their relationship is tested by the cramped quarters.

Harm and a Navy Reserve pathologist investigate the death of a child whose body was found on a military base.

When an overenthusiastic neighborhood watch group asks Magnum and Higgins to investigate a shady character living on their block, they are shocked to find that they may have inadvertently stumbled upon a serial killer on the loose.

One night in 1973, as Peter Demeter pulls his Mercedes into his driveway, the body of his wife Christine Demeter is revealed; investigators launch an epic investigation and discover a story and cast of characters that is stranger than fiction.

When the investigation of a missing girl is linked to a past case, Detective Luke Callaghan comes back to help with search; Traci realizes she needs to get past Jerry's death; Sam and Andy face their past.

When a missing persons case is reopened, Swarek teams with his training officer to solve it; Chloe and Dov deal with a witch and her client.

Fraser (Paul Gross) must protect his friend (guest star Gordon Tootoosis) 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.

Natasha Cournoyer, 37, disappears without a trace in Laval, Canada; as her friends and family struggle for answers, detectives must follow a stone-cold trail to uncover her final footsteps caught on surveillance cameras.

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.

A civilian electronics specialist is suspected of sabotage when an aircraft carrier loses power while in a no-fly zone of the Persian Gulf.

In Bud's first case as a JAG attorney, he goes up against prosecutor Harm to defend his estranged father.

McGarrett investigates a cold case that his grandfather and the famous Honolulu detective Chang Apana worked on in the 1940s; McGarrett and Danny get ready for the opening of their restaurant.

The investigation of a Navy commander's murder leads the team to E.J. Barrett, and a second death prompts the team to protect E.J. as they hunt the killer.

NCIS investigates the death of a Navy lieutenant whose body was found at a construction site; Ziva thinks about her future.

When a young man in need of immediate emergency surgery goes missing with a bullet lodged in his chest, Ethan asks Magnum and Higgins to find him before it's too late; TC talks to a military recruit who may be enlisting for the wrong reasons.

A civilian electronics specialist is suspected of sabotage when an aircraft carrier loses power while in a no-fly zone of the Persian Gulf.

In Bud's first case as a JAG attorney, he goes up against prosecutor Harm to defend his estranged father.

When a young man in need of immediate emergency surgery goes missing with a bullet lodged in his chest, Ethan asks Magnum and Higgins to find him before it's too late; TC talks to a military recruit who may be enlisting for the wrong reasons.

McGarrett investigates a cold case that his grandfather and the famous Honolulu detective Chang Apana worked on in the 1940s; McGarrett and Danny get ready for the opening of their restaurant.

Grover's parents and brother arrive in Oahu for Thanksgiving; a thief is crushed to death by an empty safe.

When an explosion at a military cemetery's mausoleum reveals a cache of dismembered human remains, the team searches for a potential serial killer.

With a young Marine on life support, the team tracks his movements in the days leading up to his being left for dead.

The Los Angeles team and NCIS: Red continue their urgent search for an elusive terrorist before he disappears.

A civilian electronics specialist is suspected of sabotage when an aircraft carrier loses power while in a no-fly zone of the Persian Gulf.

In Bud's first case as a JAG attorney, he goes up against prosecutor Harm to defend his estranged father.

When a young man in need of immediate emergency surgery goes missing with a bullet lodged in his chest, Ethan asks Magnum and Higgins to find him before it's too late; TC talks to a military recruit who may be enlisting for the wrong reasons.

A look at some of Canada's most infamous criminal cases that have had lasting impacts on communities and the justice system; featuring extensive archival footage and intimate family interviews.

A robbery on a casino-bound bus filled with seniors threatens Frank and Noelle's wedding; Traci loses Noelle; Andy and Nick share an intimate moment.

The squad searches for Chris' son Christian after he is kidnapped.

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.

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.

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.

Mac confronts her estranged father at his death bed; Harm undergoes laser surgery to cure his night-blindness.

Harm consults his psychiatrist girlfriend when he begins to see and hear his deceased father and suspects something more sinister is involved.

When a renowned urban vigilante is killed after making a citizen's arrest, the team delves into the world of super heroes and comic books to find the killer; Adam gets closer to finding out who killed his sister.

Gibbs questions the choices he has made during the course of his life when a man pulls a gun on him at a diner.

A dead Navy captain dressed in an unusual costume underneath his uniform leads the team to discover a secret society; DiNozzo is forced to work with his ex-fiancee (Perrey Reeves).

When Higgins is abducted, Magnum discovers it's retaliation related to one of his first cases; Magnum, Rick and TC must break out an ex-client from prison in order to save her.

Mac confronts her estranged father at his death bed; Harm undergoes laser surgery to cure his night-blindness.

Harm consults his psychiatrist girlfriend when he begins to see and hear his deceased father and suspects something more sinister is involved.

When Higgins is abducted, Magnum discovers it's retaliation related to one of his first cases; Magnum, Rick and TC must break out an ex-client from prison in order to save her.

When a renowned urban vigilante is killed after making a citizen's arrest, the team delves into the world of super heroes and comic books to find the killer; Adam gets closer to finding out who killed his sister.

Still reeling from the murder of one of their own, Steve and Catherine, along with Danny, Junior and some old friends, hunt down the killer; a bag of human bones discovered inside an abandoned storage locker goes missing.

Cassidy (Jessica Steen) blames herself when the team learns that a tip on terrorist activity was a trap that resulted in the deaths of two agents.

When a petty officer on whom McGee based a character for his latest book is murdered, McGee must figure out who could have accessed his secret manuscript.

The team investigates when cyanide in a communal water jug kills a lieutenant and leaves a Navy pilot in serious condition.

Mac confronts her estranged father at his death bed; Harm undergoes laser surgery to cure his night-blindness.

Harm consults his psychiatrist girlfriend when he begins to see and hear his deceased father and suspects something more sinister is involved.

When Higgins is abducted, Magnum discovers it's retaliation related to one of his first cases; Magnum, Rick and TC must break out an ex-client from prison in order to save her.

Jolene Riendeau, a 10-year-old girl, disappears without a trace from a Montreal neighborhood, she was last seen at a local convenience store; her remains were unearthed twelve years later near a bridge and her parents are still searching for answers.

A routine drug bust turns into Traci's first murder case; Swarek, Oliver, Chris and Dov spend a weekend at Oliver's cabin; Andy and Sam both have confessions to make.

Andy finds out Marlo has been carrying out an unauthorized investigation into a pedophile; the drug sweep Traci is overseeing takes an unexpected turn when Sam leaves to help Marlo.

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.

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.

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.

Clayton Webb asks Adm. Chegwidden for help in rescuing a CIA agent; Harm is devastated when his classic Corvette is stolen.

Harriet and a Marine sergeant go into labor simultaneously; Harm tries to become designated as an aviator.

After fighting off an assassin in his own home, McGarrett and Joe White flee to Montana to prepare for a battle against those exacting revenge for a past SEAL mission.

Gibbs clashes with Dr. Samantha Ryan (Jamie Lee Curtis) of the PsyOps Division when a Navy reservist is found dead from a suspected suicide; DiNozzo sees McGee's paycheck.

Security at a Naval research laboratory is in jeopardy after a petty officer's murder links to an arms dealer; probationer Ned Dorneget sucks up to Gibbs.

When an Army Ranger goes missing after returning from deployment, Magnum learns of the traumatic news he received upon arriving home and must find him before survivor's guilt consumes him.

Clayton Webb asks Adm. Chegwidden for help in rescuing a CIA agent; Harm is devastated when his classic Corvette is stolen.

Harriet and a Marine sergeant go into labor simultaneously; Harm tries to become designated as an aviator.

When an Army Ranger goes missing after returning from deployment, Magnum learns of the traumatic news he received upon arriving home and must find him before survivor's guilt consumes him.

After fighting off an assassin in his own home, McGarrett and Joe White flee to Montana to prepare for a battle against those exacting revenge for a past SEAL mission.

McGarrett and the team support Danny and Rachel by determining what happened when Grace gets into a life-threatening car accident; Tani helps Koa when his rehab patient goes missing.

Gibbs and the team must take action after the director's risky solo meeting with an informant ends with a death.

The team turns to a blind photographer (John Billingsley) to use his heightened senses of hearing and smell to re-create a crime scene and track down a petty officer's killer.

When the body of a cartel boss is stolen after a successful special task force mission, the team investigates a potential leak and find the missing remains.

Clayton Webb asks Adm. Chegwidden for help in rescuing a CIA agent; Harm is devastated when his classic Corvette is stolen.

Harriet and a Marine sergeant go into labor simultaneously; Harm tries to become designated as an aviator.

When an Army Ranger goes missing after returning from deployment, Magnum learns of the traumatic news he received upon arriving home and must find him before survivor's guilt consumes him.

True crime novels are often topping best sellers lists; to explore the reason of public fascination with this genre of storytelling, "Crime Beat" sits down with five authors pushing the boundaries of true crime.

When Andy and Chloe respond to a routine 911 call, they are blindsided by an unseen shooter out for revenge.

Following violent, targeted attacks on 15 Division, the officers must piece together a past crime in order to find Oliver; the shooter's plan is revealed.

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 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.

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

Harm regains his night vision and must choose between staying with JAG or returning to being a pilot.

Dispatcher Essence Sullins and the night shift team take non-stop emergency calls from 6 p.m. to 6 a.m., including one that connects to someone in Essence's family.

On her last shift at CVD, veteran 911 dispatcher Christine Mazzeo must navigate the chaos of St. Patrick's Day and say goodbye to the work family she has been with through thick and thin for over 12 years.

Trainee Matt Reinke is almost through the training program at CVD, but before he graduates, he must prove his ability to successfully navigate the night shift, the callers and his fellow dispatchers.

Supervisor Charline Polk leans on her 16 years of experience to handle crisis after crisis, but when she answers the phone to an open line and screaming in the background, she is faced with a situation that chills her the bone.

The story of Gary Coleman's rise as the child star of "Diff'rent Strokes," his struggles with fame and the controversy surrounding his tragic death.

When a married woman asks Magnum and Higgins to find her lover's killer because she doesn't want to expose the affair to the police, they find the victim wasn't who he claimed to be; Rick visits Icepick, whose health has taken a turn for the worse.

Harm regains his night vision and must choose between staying with JAG or returning to being a pilot.

Harm finds himself competing for top-gun status with a young pilot whose brash attack on an armored vehicle threatens peace in Europe.

When a married woman asks Magnum and Higgins to find her lover's killer because she doesn't want to expose the affair to the police, they find the victim wasn't who he claimed to be; Rick visits Icepick, whose health has taken a turn for the worse.

The story of Jan Broberg, who survived years of childhood sexual abuse by family friend Robert Berchtold. In interviews with Jan and her family, NBC News' Andrea Canning discovers how Berchtold exploited the family, had sexual encounters with Jan's parents and brainwashed her to believe aliens would kill her. Jan also discovers another survivor who tells her own story, in a powerful saga of endurance and courage.

The story of Gary Coleman's rise as the child star of "Diff'rent Strokes," his struggles with fame and the controversy surrounding his tragic death.

The story of Jan Broberg, who survived years of childhood sexual abuse by family friend Robert Berchtold. In interviews with Jan and her family, NBC News' Andrea Canning discovers how Berchtold exploited the family, had sexual encounters with Jan's parents and brainwashed her to believe aliens would kill her. Jan also discovers another survivor who tells her own story, in a powerful saga of endurance and courage.

The story of Gary Coleman's rise as the child star of "Diff'rent Strokes," his struggles with fame and the controversy surrounding his tragic death.

While off-duty, Andy and Dov become involved in a holdup at a diner; Nick goes rogue to search for Sam Swarek's next of kin; Andy is faced with both the men she cares for and must reveal her decision.

Oliver is promoted to Acting Staff Sergeant; a new rookie joins the force.

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.

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

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.

Joey plans a secret rendezvous with his ex; Bianca awaits Daniel's release; Hope reveals the truth to her sisters; True finds out if he's going back to jail; Latisha drops a bomb; Troy reunites with his family as Zeruiah prepares to face his ex.

Jeff and Amaryllis discover an unexpected connection to the Ripper in police archives while investigating the 1893 World's Fair that turned Chicago into H.H. Holme's killing ground.

H.H. Holmes goes on the run as his schemes unravel; the investigation picks up on Holmes' trail with a long-lost crime scene that could hold the key to proving he's the Ripper.

A trove of mysterious artifacts contains an unexpected link to the U.K.; Jeff and Amaryllis uncover evidence of the Holmes curse and the shocking theory that the killer escaped his own death.

H.H. Holmes' grave is exhumed in an attempt to prove that he pulled off one final swindle and escaped his own execution.

When a Marine Corps vet's SUV is stolen with her service dog inside, Magnum and Higgins must find the car, the dog and the car thief who they believe may be an escaped kidnapping victim.

Joey plans a secret rendezvous with his ex; Bianca awaits Daniel's release; Hope reveals the truth to her sisters; True finds out if he's going back to jail; Latisha drops a bomb; Troy reunites with his family as Zeruiah prepares to face his ex.

Harm is told that he has done everything he can as a pilot and that he should consider moving on; Bud, Tiner and Galindez try to impress the admiral.

When a Marine Corps vet's SUV is stolen with her service dog inside, Magnum and Higgins must find the car, the dog and the car thief who they believe may be an escaped kidnapping victim.

Jeff and Amaryllis discover an unexpected connection to the Ripper in police archives while investigating the 1893 World's Fair that turned Chicago into H.H. Holme's killing ground.

H.H. Holmes goes on the run as his schemes unravel; the investigation picks up on Holmes' trail with a long-lost crime scene that could hold the key to proving he's the Ripper.

A trove of mysterious artifacts contains an unexpected link to the U.K.; Jeff and Amaryllis uncover evidence of the Holmes curse and the shocking theory that the killer escaped his own death.

H.H. Holmes' grave is exhumed in an attempt to prove that he pulled off one final swindle and escaped his own execution.

Jeff and Amaryllis discover an unexpected connection to the Ripper in police archives while investigating the 1893 World's Fair that turned Chicago into H.H. Holme's killing ground.

H.H. Holmes goes on the run as his schemes unravel; the investigation picks up on Holmes' trail with a long-lost crime scene that could hold the key to proving he's the Ripper.

A trove of mysterious artifacts contains an unexpected link to the U.K.; Jeff and Amaryllis uncover evidence of the Holmes curse and the shocking theory that the killer escaped his own death.

H.H. Holmes' grave is exhumed in an attempt to prove that he pulled off one final swindle and escaped his own execution.

Two brothers entered a bank in Saanich, B.C. dressed in body armor and armed with semi-automatic rifles; they demanded money and took everyone inside as hostages; then, instead of escaping with the cash, the brothers paced inside the bank as police arrived on scene before a hailstorm of bullets suddenly erupted resulting in two deaths and many people with their lives forever changed.

Five ambitious cops navigate the trials and tribulations of their professional and personal lives.

Andy worries Duncan may not be suited to the job; when the body of an executed gang leader is found, 15 Division works to prevent a gang war from breaking out; Gail makes a harrowing discovery.

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 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.

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.

Harm takes the case when the son of the secretary of the Navy is accused of disobeying an order at sea.

Harm and Bud investigate the disturbing past of an AWOL Marine who is wanted as an eyewitness in a rape trial.

Adam, Junior and Tani travel to the bottom of the Pacific Ocean when a murder takes place in a remote underwater lab - and the killer may still be on board.

When classified information is leaked, the Secretary of the Navy (Matt Craven) investigates alongside Gibbs and Dr. Samantha Ryan (Jamie Lee Curtis).

The investigation into a petty officer's murder leads the team to its prime suspect: Director Vance's brother-in-law.