Dragon Ball GT

The story begins with Emperor Pilaf finally obtaining the Black Star Dragon Balls, which are said to be twice as powerful as the normal ones on Earth. However, before he can make his wish for world domination, Goku appears and interrupts Pilaf, causing the wish to be granted incorrectly, which results in Goku being turned back into a child. Goku's daughter Pan and his future self, Trunks, join him on a quest to find the scattered Black Star Dragon Balls, which will cause the Earth to explode if they are not returned within a year. The trio embarks on an intergalactic adventure to collect the Dragon Balls and save their planet from destruction.