A mother and her two young sons vanish in rural Wyoming, prompting a nationwide search. Leads dry up and the case goes cold... until the revelation of a dark secret leads police to a homicide.

When Special Forces Major David Shannon is fatally shot in his family home in Fayetteville, NC, investigators wonder if his job made him a target.

Bloomington, IL, Sergeant Jeff Pelo is a respected police officer and, at home, he's a model father and husband. When he's caught trespassing after midnight on a young woman's property, his spotless reputation comes under fire.

The decomposed body of a San Francisco businessman is found floating in the California Aqueduct in Tracy, CA. Investigators initially suspect a family member, but without evidence, the case goes cold and It takes detectives several decades to find the real killer.