The Special Training is a Success!! You're Finished Now, Majin Buu

Before he can unleash his fury on the remaining Z-Fighters, Majin Buu is coaxed into the Hyperbolic Time Chamber. Inside, Trunks and Goten are training diligently, but will they have enough time to perfect their new moves before Majin Buu arrives?

When a device used to cleanse evil souls explodes in Yama Palace in the afterlife, the red ogre who was guarding the device is transformed into the monster Janemba. This causes past villains to appear in this world, causing great panic. Gohan, Goten, Trunks and others defeat them one by one. Meanwhile, Goku, who was competing in the "Afterlife Martial Arts Tournament" on Grand Kai's planet, rushes to Yama Palace and fights a deadly battle with Janemba, but he is so strong that he is in absolute danger. But it is Vegeta who saves him from this predicament! Goku believes that the only way to defeat Janemba is through fusion, so he calls out to Vegeta, but...