The year is 1955, and a great flood is coming to Northfork, Montana. A new hydroelectric dam is about to be installed in the mountains above the town, ready to submerge the valley in the name of progress. It is the responsibility of a six-man Evacuation Committee to relocate the townsfolk to higher ground. Most have duly departed, but a few stubborn stragglers remain – among them a priest caring for a sickly orphan, a boy whose fevered visions are leading him to believe he is a member of a roaming band of lost angels desperately searching for a way home.
A young boy named Dallas goes on a search for his pool-hustling father after he abandons their family. Dallas is determined to bring his father home when he meets Joe Haley, a drifter wrestling with a past he'd rather forget, who feels responsible for Dallas' safety and reluctantly takes him in.
In search of a lifeline for his struggling off road racing team, a man takes on a young car thief looking for a second chance, but as their worlds collide, they must struggle to forge a successful alliance.