A science fiction hero action film set in the near future in which Soran, a space boy with abilities 15 times more powerful than humans, plays an active role in protecting the Earth. In 2600 A.D., archaeologist Furugetsu, who was excavating an ancient human skull, discovers a rocket underground. The space boy Soran Tachibana and the space squirrel Chappie emerge from there and use their tremendous abilities to rescue Mika, the daughter of the old moon who was trapped in a cave after being attacked by a freezing phenomenon...!?