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A special task force cracks open the cold cases of Tulsa County, starting with the 1973 murder of Veda Woodson, and the 1998 murder of 16-year-old Dena Ann Dean.

In Arizona, a community is shocked when an unknown shooter goes on a killing spree. Police bodycams capture the hunt for the murderer.

A divorced mother of four vanishes. A seemingly typical missing persons case takes a stunning turn when family and friends give very different portraits of the woman.

Colleen sails into the sunset with her boyfriend Jean Paul on his luxury yacht - and is never heard from again. Has she fallen foul of her shifty lover's quick temper.

A woman working for a bottling plant in Camden, Arkansas, goes missing. When a local stumbles upon Ruiz Stone's abandoned van, her family fears the worst.

A popular musician, beloved in the community, suddenly disappears from his jazz club along with his employee. Detectives must find them before it's too late.

When a mother vanishes, detectives must unravel a complex web of lies that continues to strike fear throughout the local community.

College student Bryce is driving to visit his parents, but his car is later found crashed and abandoned in a remote California park. What happened to him.

A woman vanishes from her home in Bell Center, Missouri. Hoping to find her before it's too late, the community aids investigators in an exhaustive search.

A young mother of four disappears with only her car left behind. When a massive search is undertaken, one of the people looking for her turns into a suspect.

When a dancer is shot dead in her home, detectives try to figure out who had a motive to kill her. A cigarette found at the scene may provide answers.

In Colorado, the idyllic life of spouses Harold and Toni Henthorn is shattered by a deadly hiking accident. But their happy home videos conceal a deadly predator.

After moving to a remote Colorado town, Ron and Cynthia Phillips and their kids struggle to adjust. But their home videos mask darker impulses that lead to murder.

To solve the murder of a respected young entrepreneur, Detective Dale Mason must navigate a tangled conspiracy and outwit a band of career criminals.

When investigators respond to a bloody quadruple homicide, they soon discover the murders involved torture, revenge, and even Satan.