Bob Hightower finds his ex-wife murdered and his daughter kidnapped by an insidious cult. Hightower takes matters into his own hands and infiltrates the secretive cult to try to save his daughter. With the help of the cult's only female victim escapee, Case Hardin, Hightower and Hardin go down the rabbit hole with The Ferryman to save his daughter and find closure for Hardin from the cult – and its maniacal leader Cyrus – that took so much away from her.