Mike Whittaker's little brother has drowned, dragging the high school senior into an abyss of grief. But when he learns what really happened at the Lawson town pool, despair turns to rage, and he brings a gun to school. Mike's near-deadly assault on a classmate has him headed for juvenile detention, and his only leverage is the truth about his brother's death -- a dark secret that threatens the most powerful family in Lawson. A legal gambit sends Mike to a wilderness therapy program instead of prison, where he and his unlikely companions face their demons at an isolated mountain lodge under the guidance of tough-love mentors. Just two weeks in, however, a suspicious accident leaves the boys stranded and unsupervised. They soon discover a menace within their group, and what began as a struggle for redemption becomes a fight for survival deep in the Montana wilderness.