A mysterious killer spoils the vacation of a group on a rafting trip down the Rio Grande river.
A group of people on a rafting excursion happen upon a deserted town and decide to set up camp. Out of the blue, a murder occurs. It appears that the town is not as deserted as they thought. Someone is out there and doesn't want them around. They desperately try to escape but their rafts are destroyed. What possible hope of survival can they have with no escape and no one around to help'