 A group of inner city youths stops at the lodge while on their way to Whitefish Falls. Ricco, a troubled loner of a boy, takes an outboard from the lodge and runs the tank empty. He swims to shore and happens to land where Billy and Pete are camping. Ricco steals Billy s equipment and hides in an abandoned mine. When Billy confronts Ricco a struggle ensues and the two are trapped inside the mine when a beam gives way. The youth leader and Officer Nixon undertake to rescue the two boys.