Tonga is dispatched to Saturn's third moon after reports of trouble at the Cosmic Radiation Plant #1. Tonga's investigation leads the dismissal of the hot-tempered Captain Kronk. Kronk avows revenge and Tonga is shot with a shock rifle. Commander Corry and Cadet Happy arrive and rescue Tonga, but they are unable to capture Captain Kronk. However, they do arrest Kronk's assistant attempting to abscond with embezzled payroll accounts from the plant.