After a catastrophic car-crash, a young woman wakes up in a survivalist's underground-bunker. He claims to have saved her from an apocalyptic attack that has left the outside world uninhabitable. But, as his increasingly suspicious actions lead her to question his motives, she'll have to escape in order to discover-the-truth.

After a catastrophic car crash, a young woman (Mary Elizabeth Winstead) wakes up in a survivalist's (John Goodman) underground bunker. He claims to have saved her from an apocalyptic attack that has left the outside world uninhabitable. But, as his increasingly suspicious actions lead her to question his motives, she'll have to escape in order to discover the truth.