Charming young slacker Dell Hansard is in love with beautiful Piper. He makes an impromptu proposal on a weeklong camping trip, but Piper, the daughter of a wealthy business man hesitates. On their way home they stop at a gas station, and are surprise to find signs reading "closed indefinitely due to the gas crisis". Having been away the young couple does not realize a worldwide catastrophe has struck. They are stuck in the middle of nowhere and must now fend for their lives. They sleep at a nearby abandoned motel where a manipulative manager swindles them out of the last of their money. The crisis only worsens when a robbery takes place and they must flee on foot. They realize this is more than a crisis, and they must stick together, to survive at all.