Motorcycle mechanic C.C. Ryder (Joe Namath) joins "The Heads," an outlaw biker gang. Fellow gang members menace fashion journalist Ann (Ann-Margret) when her limo breaks down in the desert; C.C. rescues her. The bikers disrupt a motorcross event tied in with a fashion shoot, but C.C. enters the competition under Ann's admiring eye. His win puts him at odds with Moon, leader of "The Heads."