Piccolo's Decision
With Baby destroyed forever Goku learns that the Earth is set to explode in a mere two weeks! Goku organizes a massive relocation to the Tuffle Planet leaving himself and Piccolo trapped on Earth with no energy to transport them both to safety. With the Earth only moments away from destruction, one of the heroes will be forced to stay behind to share Earth's fate!
Aired 05/03/1997EP 40 - Piccolo's Decision
Dragon Ball GT
Emperor Pilaf finally has his hands on the Black Star Dragon Balls after years of searching, which are said to be twice as powerful as Earth's normal ones. Pilaf is about to make his wish for world domination when he is interrupted by Gokuu Son. As a result, Pilaf flubs his wish and accidentally turns Gokuu back into a child.
After the wish is granted, the Black Star Dragon Balls scatter across the galaxy. However, Gokuu discovers that they will cause the Earth to explode unless they are all brought back within a year. Uniting with his granddaughter Pan and a young adult Trunks, Gokuu sets off on an adventure through the universe to find the Black Star Dragon Balls and save his planet from destruction.
(Source: MAL Rewrite)