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After two Colorado women vanish in a deadly winter storm, key evidence keeps the case open for investigators to uncover the truth; a harrowing blizzard rescue the very same night could hold the clues to an almost 40-year search for the killer.

Buried in the Backyard

Secrets in the Snow

A champion Russian boxer disappears from Brighton Beach, N.Y., and the neighborhood dare not talk for fear of reprisal until investigators uncover a long-buried secret in a New Jersey backyard.

Buried by the Bratva

A beloved mother is found brutally murdered near the military town of North Pole, Alaska, and soon four more girls meet the same fate.

Death in Christmas Town

A retiree settles in Southern California hoping to live his best life; when he disappears without a trace, investigators must uncover if his demise was connected to the unconventional pen pals he made.

Poison Letters

When a Texas father disappears without a trace, investigators go on an international manhunt to catch a killer and unravel a sinister plot that has them searching for answers deep into the Chihuahuan Desert.

Gone in the Sand

When a young South Carolina father goes missing, investigators must navigate a twisting trail of small-town rumors and misguided revenge to uncover the deadly truth.

Buried Again

Detectives attempt to trace a young woman's last steps as she leaves a casino and disappears into the night; an almost forgotten childhood memory helps find her buried in the backyard.

Unlucky Gamble

When a promising forensics student is found mutilated on a lonely stretch of Utah highway, her sheriff's department colleagues will stop at nothing to deliver justice.

One of Our Own

When a widower disappears from his Southern California home, investigators find themselves caught up in a federal investigation involving the infamous hunt for skyjacker D.B. Cooper.

To Catch a Thief

When a California mother wakes to find the door wide open and her daughter missing, law enforcement travel the country to find her until they discover a dark plot that began at the teen's doorstep.

Last Song You'll Ever Hear

A spunky grandmother and former bail bondswoman is a no-show at work, leaving friends and family desperate for answers. As investigators focus on felons from her former career, they soon discover she may not be the only one missing.

Deadly Trust

A young couple sets out from a holiday visit but never makes it home as law enforcement search dangerous terrain fraught with derelict silver mines.

Hundred-Foot Grave

Different cases in which a victim was buried in an unsuspecting place: the backyard.

When a Michigan mother disappears on an afternoon walk, investigators pin all hope on their sole eyewitness: a 10-year-old boy who may have witnessed the unthinkable.

S5 E2 | Boy Witness