Drifter and small-time con man Sheldon Bart encounters old friend, Brother Bud Sanders, a big-time con artist into faith healing and fencing stolen cars, at his revival tent outside a small town. Whilst helping Brother Bud, Sheldon falls in love with deeply religious and deeply lonely supermarket clerk Arlene, who believes in UFOs. When Arlene has a vision of an approaching UFO, everyone deals with the impending doom in their own ways.
