Jordan Gunn can't swim-at least he can't swim in the cold, dirty lake at summer camp. Fortunately, he meets Nick Dietrich, the waterfront director, who helps him overcome his fears and eventually have enough confidence to pass his swimming test and learn to kayak. Jordan's first relationship with Nick is that of hero-worship. When Jordan helps Nick rescue two of Jordan's friends from the lake at night, Jordan's hero-worship turns into a deep friendship. Later, Nick takes Jordan on his first whitewater kayak trip in northern Wisconsin on the Wolf River. Jordan discovers that it's much harder to kayak on a moving river than on a lake and he is terrified of the rushing water. Early in the trip, Nick is seriously injured in an accident that Jordan thinks he caused. Since Nick can no longer paddle, Jordan must overcome his fears of the water and paddle by himself almost twenty miles to the take-out point to get help to rescue Nick. After Nick is rescued, Jordan must confront his guilt and somehow maintain his friendship with Nick.
