Goku is accidentally turned back into a child by Emperor Pilaf’s wish. To prevent Earth from exploding, he, Trunks, and Pan must travel across the galaxy to find the Black Star Dragon Balls.
(Note: Episodes 32-40 are often mis-categorized; the Baby Saga technically ends with Goku’s farewell in episode 40.) The Shortest Arc dragon ball gt list of episodes
For fans doing a full rewatch, bookmark this list. You’ll need it to navigate the rough patches to reach that unforgettable finale. Goku is accidentally turned back into a child