Piccolo's Decision Dragon Ball GT: Doragon bôru jîtî : Season 1 Episode 40

With Baby destroyed forever, Goku learns 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 to safety. With the Earth only moments away from destruction, one of the heroes will be forces to stay behind to share the planet's fate!