Phelps and Kelly enter the frightening world of Israel Keyes, who may be one of the worst serial killers we've ever seen. He took great care in hiding his victims, which means finding them has become a new nightmare.

Phelps and Kelly continue their investigation into the dark world of serial killer Israel Keyes. Can the Dark Minds team unearth some of this case's biggest secrets?

In the quiet town of Lewiston, ID, an eerie local theatre has a dark past - three people went missing here, 2 turned up dead. Is it a local killer, connected to a string of other murders? Phelps and Kelly dive deep into the case.

Torrey Pines Beach, CA is an idyllic place, but it's also been the scene of horror where two teenagers were murdered 30 years ago, and there is still no justice. Phelps and Kelly retrace the final hours of the victim's lives and uncovers new clues.

The discovery of a naked woman's body on Ocean Parkway in 2011 was just the beginning. How many women has the Long Island Serial Killer brutalized and murdered? Phelps and Kelly are hot on the trial, looking for clues in order to stop this terrifying madman.

In Denver, a serial killer is posing the naked bodies of young women by highways outside the city. At least four victims were left this way, and there may be more. Phelps and Kelly look for connections and clues in the Aurora County Murders.