Dragon Ball GT (1996)

S1E40 Piccolo's Decision

After the defeat of Baby, Goku discovers that Earth is on the brink of annihilation, with only two weeks left! He spearheads a large-scale evacuation to Tuffle Planet, but he and Piccolo find themselves stranded on Earth without enough energy to escape. As the countdown to destruction ticks away, one hero must make the ultimate sacrifice and remain behind to face the planet's grim destiny!