For years, young men have been vanishing in Louisiana, their bodies later found dumped in waterways; with no suspect and no leads, the case goes cold until one man escapes, setting off a dramatic police sting.

Firefighter William Walker is shot outside his home in what appears to be a robbery gone wrong; when detectives dig deeper, an anonymous call leads them to a chilling truth.

When the remains of seven people are found behind a strip mall, detectives suspect they are looking for one of Connecticut's most prolific serial killers; a conversation over a game of cards in prison blows the case wide open.

When four hikers go missing in the Appalachian Mountains, investigators suspect a serial killer is lurking in the forest; Time is running out for them to catch him before he selects another victim.

Micah Rine's close-knit, God-fearing family has a bad feeling about her new husband; when she goes missing, he begins to act suspiciously.

When police link two murders in different States, they're shocked to find the prime suspect appears to be a grandmother on a gambling jaunt; what follows is a high-stakes chase across America.

When Kelly Cochran's lover is found dead, detectives begin to investigate her husband Jason; what follows is a dangerous game of cat and mouse, as investigators uncover a deadly marriage pact.

A mother is picking up her children from school when she is ambushed in broad daylight; as police chase the suspect through the city, they uncover a chilling fact.

Kylen Schulte and Crystal Turner vanish after reporting a strange man near their campsite; days later, they're found murdered; with no clear suspect, Kylen's father begins his own hunt for the killer in the vast wilderness of Moab.

A desperate search begins when nine-year-old Elizabeth Olten disappears after school; when detectives uncover the chilling diary of her 15-year-old neighbor, the case takes a terrifying turn.