Dakota meets the team in Tennessee to investigate the dark corridors of Brushy Mountain State Penitentiary. Chelsea has a shocking confrontation with one of its most infamous inmates, while Tanner is threatened by an entity known as The Creeper.

The site of a horrific Native American massacre is the team's darkest, most-terrifying location yet. They are tormented by unexplained screams, terrifying chants and a voice that almost pushes them to the edge of madness.