H.G. Welles Unternehmen Delta 3

Earths a devastated wasteland, and whats left of humanity has colonised the Moon in domed cities. Humanitys survival depends on an anti-radiation drug only available on planet Delta 3, which has been taken over by Omus, a brilliant but mad mechanic who places no value on human life. Omus wants to come to the Moon to rule, and intends to attack it by ramming robot-controlled spaceships into the domes. Dr. John Caball, his son Jason, Jasons friend, Kim, and a robot named Sparks embark on Caballs space battlecruiser on an unauthorized mission to Delta 3; to stop Omus.