When 9-year-old Elizabeth Olten vanishes in 2009, suspicion falls on her troubled teenaged neighbor.
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 decorated Marine is ambushed and killed at her kids' school, triggering a frantic police pursuit.
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.
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.
Micah Rine's close-knit, super religious family has a bad feeling about her new husband. When she goes missing, he begins to act suspiciously.
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.
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.
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.
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.