Called back into the fold of the U.S. Marshals Service, Tim is tasked with retrieving Leah Henning, the daughter of a powerful Hollywood producer, from a mind-control cult. As Tim wends his way deep undercover into an insidious operation called "The Program," he confronts a brand of mind-warping manipulation beyond his worst expectations.

Tim becomes enmeshed with a diverse band of characters -- from the charismatic, messianic leader T. D. Betters to a cult reject burnout to the intelligent yet highly vulnerable Leah herself -- and finds himself caught in a shadowy landscape of lies, manipulation, and terror. At stake: innocent minds -- maybe even his own.