When the experienced guide Vic accompanies the city boy Alan and his three friends on their first wilderness experience, he not only hope to teach the four boys lessons about the wilderness, but about themselves. Vic pushes them to the limit. Soon after alienating the boys, Vic finds himself in desperate need of help and must rely on his students in order to survive.
While on a family vacation, rafting expert Gail takes on a pair of armed killers while navigating a spectacularly violent river.