One day Doraemon, Nobita, Shizuka, Gian and Suneo were shooting a film as space heroes. When they were shooting the film in the open lot a boy called Aron comes and alerts them of aliens attacking his planet. They agree to help him by turning into real superheroes, but it isn't as easy as it looks.
A monkey king who learns the secrets of magic goes on a spree and causes no end of aggravation for the gods, who finally imprison him. In order to make up for all the trouble he's caused, he is sent on a mission to accompany a prince who is the son of the gods on a journey through a land filled...
