Discovery ID

'S1/E6 - The Good Girl'. When a recently widowed businesswoman is found brutally murdered in her Little Rock home, police discover the killer is closer to her than they thought.

'S1/E5 - Friend Fatale'. A popular teenager's body is discovered along an abandoned trail. But interviews with the victim's friends reveal a dark side to his closest relationships.

'S10/E2 - He'll Kill Me Next'. Domeneka believes she's found real love with her boyfriend, Michael. By the time he reveals his true colours, she fears she'll be his next target.

'S2/E7 - Drowning In Despair'. After their two children accidentally drown, a couple's marriage is at breaking point. But, this was not the only tragedy to hit this family.

'S2/E8 - The Corpse Who Came To Dinner'. A lonely widow in rural Pennsylvania finds an unconventional way to cope with loss, and her small town keeps her unusual secret for over a decade.

'S4/E11 - Ties That Bind'. Experts delve into disturbing cases of psychopathic killers known as 'family annihilators,' who see family members as simply potential victims.

'S10/E2 - He'll Kill Me Next'. Domeneka believes she's found real love with her boyfriend, Michael. By the time he reveals his true colours, she fears she'll be his next target.

'S1/E5 - Friend Fatale'. A popular teenager's body is discovered along an abandoned trail. But interviews with the victim's friends reveal a dark side to his closest relationships.

'S1/E5 - Boardwalk Pied Piper'. In Florida's Daytona Beach in 1989, a torrid affair between a bar owner and a waitress leads to a deadly home invasion and a videotaped murder.

'S1/E1 - Deadly Message'. A 23-year-old man goes missing in the small community of Beech Island, South Carolina. As his family desperately search, an ominous text message deepens the mystery.

'S1/E2 - The Long Way Home'. In Ohio, a 20-year-old student goes missing while riding a bicycle home from her boyfriend's house. Detectives begin a frantic search to find her.

'S1/E11 - How Much Have You Got'. Niklas talks to a man who really doesn't remember how many units of alcohol he is bringing. Tomas takes the time to teach a lesson at Arlanda.

'S7/E4 - Virtual Hitchhiking'. A teenager goes missing after meeting someone online, and police discover a predator far more dangerous than they ever imagined - a serial killer on the loose.

'S1/E10 - Loads Of Beer'. Large quantities of beer are discovered when a car is stopped in Malmö. When the couple's stories don't add up Niklas suspects they are planning to sell it.

'S1/E11 - How Much Have You Got'. Niklas talks to a man who really doesn't remember how many units of alcohol he is bringing. Tomas takes the time to teach a lesson at Arlanda.

'S1/E3 - Oh, Aaron'. Aaron Carter goes public saying he supports the women's allegations against his brother. At the same time, his behaviour becomes increasingly erratic.

'S1/E4 - Silenced And Speaking Out'. Aaron's struggles with addiction and mental illness come to a tragic conclusion. Nick faces more allegations, and his accusers take their cases to court.

'Lady Gucci: The Story Of Patrizia Reggiani'. The former Mrs Gucci tells her story: meeting Maurizio, their love, the fabled wedding and the nightmare.

'S3/E1 - My Bloody Valentine'. Sixteen-year-old Diana Peterson is slaughtered in her own backyard on Valentine's Day. Did she know her killer, and where is he lurking now?

'S7/E5 - Killer Chatroom'. A college student seeks support online when the stresses of life begin to mount. He bonds with a young nurse who turns out to be anything but a healer.

'S1/E5 - Boardwalk Pied Piper'. In Florida's Daytona Beach in 1989, a torrid affair between a bar owner and a waitress leads to a deadly home invasion and a videotaped murder.

'S1/E6 - The Good Girl'. When a recently widowed businesswoman is found brutally murdered in her Little Rock home, police discover the killer is closer to her than they thought.

'S1/E12 - Secrets In The Trunk'. Alex talks to a man acting strange and when checking the man's luggage, he finds something even more strange. A German couple lies about what is in their trunk.

'S5/E4 - The Delphi Killer'. A quiet rural town is rocked when two schoolgirls are found murdered. Police discover one of the girls may have recorded her killer with her phone.

'S5/E5 - Hollywood Ripper'. A suspected serial killer prowls Hollywood. As the number of victims climbs, one brave woman fights back fiercely and manages to survive.

'S4/E4 - Taylor's Tale'. Freshman Taylor Behl goes missing after just days on campus, and her mother's worst fears are realized. A relationship based largely on the Internet has proven fatal.

'S4/E5 - Never Too Late'. When Florida rookie Detective Donna Velazquez was assigned the case of David Jackson, who'd been missing for years, she surprised everyone with her findings.

'S5/E2 - Darkest Hour'. John hunts Jovanny Romo Arellanes, who police say killed his ex-girlfriend. In Atlanta, Callahan seeks answers in a case involving Steven Oboite.

'S5/E3 - Dead Of Winter'. In pursuit of Dylan Harrington, John takes on a chilling murder case in remote Washington State. Callahan travels to Colorado to help police hunt down Andrew Rosa.

'S2/E8 - Lost Rider'. 12-year-old Autumn loves her new BMX. But in 2012, Autumn - and her beloved new bike - go missing. A trail is left behind on Facebook, but where will it lead?

'S2/E10 - Hate Mail'. Shortly after Chris Coleman starts a new job as Security Chief for a Christian ministry, he begins receiving threatening emails. Then, tragedy strikes.

'S1/E7 - The Rabbit Hole'. A teenager is found slain in a local park in Washington. As those closest to the victim lead investigators down the rabbit hole, a conspiracy is slowly unearthed.

'S7/E10 - Murder At Sunrise'. On a March morning in Baltimore, the brutal stabbing and murder of 96-year-old Evelyn Murray-Bailey devastates the community.

'S6/E4 - White House Of Horror'. In Indiana, a possible murder-kidnapping leads Evansville Police into an armed standoff with a suspect barricaded inside a house.

'S10/E2 - He'll Kill Me Next'. Domeneka believes she's found real love with her boyfriend, Michael. By the time he reveals his true colours, she fears she'll be his next target.

'S9/E12 - The Final Cut'. After the stabbing of hairstylist-to-the-stars Fabio Sementilli, a trail of passion and greed exposes a killer who sends shockwaves as far as Canada.

'S7/E10 - Murder At Sunrise'. On a March morning in Baltimore, the brutal stabbing and murder of 96-year-old Evelyn Murray-Bailey devastates the community.

'S6/E4 - White House Of Horror'. In Indiana, a possible murder-kidnapping leads Evansville Police into an armed standoff with a suspect barricaded inside a house.

'S2/E8 - Lost Rider'. 12-year-old Autumn loves her new BMX. But in 2012, Autumn - and her beloved new bike - go missing. A trail is left behind on Facebook, but where will it lead?

'S5/E4 - The Delphi Killer'. A quiet rural town is rocked when two schoolgirls are found murdered. Police discover one of the girls may have recorded her killer with her phone.

'S5/E5 - Hollywood Ripper'. A suspected serial killer prowls Hollywood. As the number of victims climbs, one brave woman fights back fiercely and manages to survive.

'S1/E12 - Secrets In The Trunk'. Alex talks to a man acting strange and when checking the man's luggage, he finds something even more strange. A German couple lies about what is in their trunk.

'S7/E5 - Killer Chatroom'. A college student seeks support online when the stresses of life begin to mount. He bonds with a young nurse who turns out to be anything but a healer.

'S1/E11 - How Much Have You Got'. Niklas talks to a man who really doesn't remember how many units of alcohol he is bringing. Tomas takes the time to teach a lesson at Arlanda.

'S1/E12 - Secrets In The Trunk'. Alex talks to a man acting strange and when checking the man's luggage, he finds something even more strange. A German couple lies about what is in their trunk.

'S4/E4 - Taylor's Tale'. Freshman Taylor Behl goes missing after just days on campus, and her mother's worst fears are realized. A relationship based largely on the Internet has proven fatal.

'S4/E5 - Never Too Late'. When Florida rookie Detective Donna Velazquez was assigned the case of David Jackson, who'd been missing for years, she surprised everyone with her findings.

'S5/E2 - Darkest Hour'. John hunts Jovanny Romo Arellanes, who police say killed his ex-girlfriend. In Atlanta, Callahan seeks answers in a case involving Steven Oboite.

'S5/E3 - Dead Of Winter'. In pursuit of Dylan Harrington, John takes on a chilling murder case in remote Washington State. Callahan travels to Colorado to help police hunt down Andrew Rosa.

'S7/E6 - The Model Predator'. When a model scout approaches two high school boys for photos, they can't resist her advances. But her intimate requests lead to devastating consequences.

'S2/E8 - Lost Rider'. 12-year-old Autumn loves her new BMX. But in 2012, Autumn - and her beloved new bike - go missing. A trail is left behind on Facebook, but where will it lead?

'S2/E10 - Hate Mail'. Shortly after Chris Coleman starts a new job as Security Chief for a Christian ministry, he begins receiving threatening emails. Then, tragedy strikes.

'S1/E13 - Who Owns This?'. Fiffi finds cannabis on young people on vacation while working at the Öresund bridge. A man gets angry when customs take away his cigarettes at Arlanda.

'S1/E2 - The Devil's Playground'. Anger in Jennings, Louisiana, boils over as an eighth woman is found and police still have no answers. Can they prove the murders are all linked?

'S1/E6 - Digital Lies'. When 21-year-old Julie Ann Gonzalez suddenly goes missing, detectives investigate her puzzling digital trail to uncover the horrifying truth behind her disappearance.

'S2/E1 - A Hole In Time'. When single dad David Heisler goes missing, clues lead detectives into the desert, but the trail stops cold. Digital forensics experts to help unravel this mystery.

'S1/E5 - Under Siege / Where's Chynna?'. Mississippi police turn to city-run cameras to identify suspects of a shooting spree. In Utah, a missing person's case becomes a murder investigation.

'S1/E6 - Almost Home / Smoke Screen'. When a man is shot dead on the Fourth of July, detectives use social media to track down the killer. In Washington, police investigate a raging fire.

'S2/E4 - My Brother's The Killer'. When the truth of a 10-year-old murder case finally comes to light, the revelation stuns the family, the community, and the investigators.

'S2/E5 - Exposing The Cover Up'. When a former crime reporter is found murdered inside his home, investigators suspect his spouse, until intercepted jailhouse calls reveal the true killer.

'S1/E8'. The body of a 19-year-old man is discovered and police launch a nationwide search for suspects. Detectives soon realise the murder may be part of a sexual domination plot.

'S12/E1 - Hauntingly Familiar'. When the body of a young woman is discovered in the woods, investigators are faced with a difficult decision if they're to solve this brutal murder.

'S9/E12 - The Final Cut'. After the stabbing of hairstylist-to-the-stars Fabio Sementilli, a trail of passion and greed exposes a killer who sends shockwaves as far as Canada.

'S7/E10 - Murder At Sunrise'. On a March morning in Baltimore, the brutal stabbing and murder of 96-year-old Evelyn Murray-Bailey devastates the community.

'S6/E4 - White House Of Horror'. In Indiana, a possible murder-kidnapping leads Evansville Police into an armed standoff with a suspect barricaded inside a house.