A land developer disappears into the Arizona desert, and a brother sets out to uncover the truth; when hikers stumble onto a gruesome discovery, investigators quickly realize no one can be trusted when they find themselves in the line of fire.

A horrific discovery in a backyard cornfield is just the beginning of an unspeakable scene. As horrors unfold in this small, Midwest town, someone is playing a deadly game of cat and mouse and it will be years before a ghastly truth is revealed.

A pleasant Michigan day takes a dark turn when a field hand digs up a human skull in a sprawling backyard; the discovery leaves a tight-knit community shaken to its core and questioning whether a killer has penetrated the safety of its town.

When a private investigator disappears with tens of thousands of dollars, Florida detectives question whether she's alive and well. But when a buried body is uncovered, they chase a trail of secrets and lies to catch a killer just out of reach.

A beloved high school track star vanishes into the Philadelphia night and those in her innermost circle are eyed as suspects. When a terrifying scene is unearthed in the nearby woods, a family demands answers, but nobody is prepared for the truth.

A party in the woods of a Pennsylvania coal-mining town takes a turn when someone goes missing.

A hike in the woods of the Hollywood Hills takes a terrifying turn when a dog digs up a female foot. As panic spreads through a Southern California community a family fears for its own safety and investigators will stop at nothing to catch a killer.

When a new college graduate's car is found abandoned, investigators race to find the missing girl.

A lovesick teen goes missing, and investigators in Indiana learn she's keeping a secret; teens make a gruesome discovery in the woods, and a local high school's dark secrets are soon revealed.

A couple makes a ghastly discovery buried in their Ohio home. And when investigators field another call, they fear someone may be preying on young women. But as suspects begin to surface, a cover-up far more sinister than the crime comes to light.

A friendly bet exposes a terrifying scene under a California home.

When a concerned neighbor stumbles onto a horrifying scene in a Spokane, Washington home, a family is devastated and some buried secrets come to light. Investigators unravel a bizarre web of truths and lies to find enough evidence to catch a killer.

The joy of Christmas looks bright for a doting Oklahoma Mom. But her kids wake up to a living nightmare when she's inexplicably gone. As investigators track two suspects down a deceitful road, an incendiary break lures the killer out of the dark.

When the car of a Southern California girl is found abandoned, investigators spend years and travel hundreds of miles trying to solve her mysterious disappearance. Finally, an unimaginable backyard discovery by drug agents leads to a vicious killer.

A Florida co-ed disappears after a night on the town. As investigators trace her last steps, they fear some missing girls at another campus might be connected. But when a dog sniffs out a backyard grave, the key to this mystery is far closer to home.

A former Catholic priest turned realtor vanishes from Florida and investigators find themselves examining circumstances stranger than their suspects. When a tip exposes a murder-for-hire scheme, the mastermind is revealed as a cold-blooded killer.

After a real estate agent disappears, Florida investigators scrutinize the men in her life.