In the fallout of Vegeta's sacrifice, the search begins for the missing warriors; Piccolo examines the site of the explosion, finding a badly crippled Babidi and discovering to his horror that Majin Buu somehow survived.

Bulma and the others search for the Dragon Balls in hopes of restoring those lost in Vegeta's massacre; Goku meets the surviving fighters at the Lookout to catch up on all that happened while he was unconscious.

Goku offers to instruct Goten and Trunks how to fuse together to create a stronger hero in preparation for the big fight with Majin Buu; Bulma and the others summon Shenron to revive Vegeta's victims, but Goku asks them to make only one wish.

Planning to reap vengeance, Babidi makes a magical global announcement to find the whereabouts of Piccolo, Goten and Trunks.

Pressure mounts for the fighters to face Majin Buu; Goten and Trunks recover and Goku tells them about Vegeta and their fusion training; Supreme Kai brings Gohan to the World of the Kais so he can attempt to claim a legendary sword of great power.

Gohan powers up to pull the Z Sword from its resting place; Goku tries to teach Goten and Trunks how to perform fusion, but the boys harbor resentment at his disappearance during Vegeta's fatal encounter with Majin Buu.

Trunks grows impatient with Goten as their fusion training continues; Babidi and Majin Buu learn where Trunks lives and threaten to destroy Capsule Corp., forcing Goku to intervene.

Goku powers up to a new level of Super Saiyan, hoping to have enough power to stop Majin Buu from destroying West City, but his transformation threatens the remaining time he has left on Earth; Trunks searches Capsule Corp. for the Dragon Radar.

Goku uses his new abilities to go head to head with Majin Buu, giving Trunks more time to find the Dragon Radar; Babidi scolds Buu for his recklessness after an attack nearly hits him, causing Buu to turn against his wizard master.

With his time on Earth running out, Goku must finish teaching Goten and Trunks the Fusion Dance; unleashed from his master, Majin Buu rampages across the planet, wiping out entire cities.