A Los Angeles lawyer is attacked by a poisonous rattlesnake leading police to a bizarre cult veiled as a drug and alcohol rehab facility. The cops uncover a group of blind followers willing to do anything at their leader's urging, even murder.

The Gatekeepers saw themselves as pure participants in a religious quest to cleanse the world. When a member challenges the cult's radical leader, cops discover how he paid for his disobedience with his life. Now his killers are nowhere to be found.

A community is shocked when a prominent local doctor is gunned down by two mysterious women in broad daylight. Through the investigation, Murray, Utah police uncover a web of warring prophets, strained families, and multiple murder plots.

A quadruple murder rocks a small California town, leading police to investigate a refugee camp run by a local man. What appeared as a quiet, small community soon reveals itself as a sinister group full of manipulation, abuse, and violent rituals.

A family is desperate to find their daughter, Gail, who ran off with a strange cult. Years later, police are called to a posh mansion near San Diego and are shocked to find 39 bodies in a mass suicide. Was Gail one of the deceased or did she escape?

It was a 911 call for a suicide. However, when cops interview the victim's girlfriend, she claims there's more behind his death. Police must determine if an online cult that believes in aliens and reptiles disguised as humans is actually at fault.

To his followers, he's an angel who died and came back to life, but when seemingly accidental deaths keep occurring around him, one investigator digs deeper. Are these strange coincidences or is something more disturbing going on at Angel's Landing?

Police must determine if the deaths of three obedient followers who die during an intense sweat lodge ceremony were accidental or if they were pushed too far by a prominent self-help guru.