Season 4

The luckiest moment in a man's life gives way to a dark mystery when he vanishes after winning a multi-million-dollar lottery.

A small town is rocked when a popular hostess at the town's favorite tavern disappears; neighbors in the tight-knit community eye each other suspiciously, unaware that the answers may lie beneath the rolling Nebraska Sandhills.

When the popular owner of a boutique motel on an island paradise in Florida disappears amid signs of foul play, the deadly secrets of a quaint beach town slowly work their way up through the pristine white sand.

When a successful lawyer's body is found buried in a South Floridian canal, detectives use innovative technology to follow the gruesome steps taken by an evil killer.

An entrepreneur forges an unlikely friendship with a ragtag group of skateboarders; but when he vanishes and signs point to foul play, police wonder whether he was really a friend or a target.

A cowboy more at ease with horses than people vanishes into the desert after running into a group of California ranchers who believe he's done them wrong. Police must determine whether he rode off into the sunset or was the target of a deadly vengeance.

A California mom of three vanishes, and her car is found by the side of a desolate road with a suspicious flat tire. The case goes cold for years until a new detective takes on the case and is determined to get answers.

A night out on Hollywood's notorious Sunset Strip leads to a desperate search when a teenage girl doesn't make it home. The search for answers weaves though the strange side of Los Angeles before the tragic truth is uncovered in the Hollywood Hills.

When a high school student mysteriously vanishes, police must sort through the whispers, lies, and deeply personal secrets of a group of teenagers in a small Michigan town to unearth the deadly truth.

A missing young father in Utah returns home and confesses to an affair but vanishes again.

A Colorado woman vanishes shortly after moving in with a group of friends.

The discovery of a body buried in a Delaware backyard launches police into a twisted investigation.

A former judge retires to Florida and becomes the center of a mystery when he vanishes.

A weekend getaway becomes the center of a mystery when a respected college professor disappears.

A popular librarian vanishes after a night of dancing in Kentucky's capital city.

Police believe the discovery of a body in a backyard ends the desperate search for a missing woman.