While conducting deep-cover operations during the darkest days of World War II, a female American spy becomes a Nazi captive. The prison in which she's been incarcerated—one of the Reich's more heinous facilities—is commissioned with the sole purpose of extracting information from accused war criminals. She quickly realizes a desperate truth—that she will soon be made to endure horrific acts of torture. Worse yet, though she's the keeper of countless war secrets she's been entrusted to protect, a more frightening secret is that her Aryan captors have yet to discover her Jewish ancestry.