David is the sole survivor of a disastrous flood in the Narrows of Zion National Park in 1961 who has finally decided to return to the Park and again hike the Narrows. In spite of precautions, the hike soon becomes a fight for his life and the lives of his children as murderous skinheads attack them. Even worse, the weather changes and soon the family is faced with almost certain death, either at the hands of the skinheads or a rampaging flash flood.