In the city of Comfort, Texas, a Baptists community organizes a summer camp with young people from all over the country. On the way back from the camp, the convoy of vehicles carrying the participants is surprised by a Flash flood when crossing the river Guadalupe, near the city of San Antonio. A bus and a van lie in the middle of the river. The young are forced to hurry out of these two vehicles, and are swept away by the current. In the midst of chaos, the young have to fight to survive, while the rescue teams struggle against time to try to save them. Even a TV helicopter is employed in the rescue.