Vegeta attempts to convince the people of Earth to give their energy for the Spirit Bomb. Meanwhile, Fat Majin Buu has lost all his energy, and Kid Buu begins another onslaught onto Vegeta, forcing him to fight again.

It has been ten years since Buu was defeated. Goku, Goten, Vegeta and Trunks enter the World Martial Arts Tournament, where they also meet up with old friends and family.