Leah Henning, the eighteen-year-old daughter of a famous Hollywood producer, has vanished into The Program - a shadowy cult that practices mind-control and manipulation, led by its brilliant, messianic leader T.D. "Teacher" Betters. Leah surrendered her life, looking for peace. She found Hell.
Called back into the fold of the US Marshals Service - having lost his own daughter to evil - Tim Rackley is determined to infiltrate the malevolent society and bring the confused teenager home. But what is going on within The Program is more shocking and horrific than he ever imagined. And his determination to rescue Leah and countless other innocent, vulnerable minds from the Teacher's lies and machinations could cost Rackley much more than his life . . . and plunge him deep into a terrible and inescapable darkness.