The Z-fighters find themselves in the middle of another extraterrestrial conflict, which includes a sword-wielding warrior named Tapion, a wizard and an enormous kaiju-like monster named Hirudegarn.

Having been reduced to a coffee-flavored candy, it seems nothing can stop Vegito from being consumed by the evil Majin Buu. But when the gumdrop fights back, Buu realizes that the battle is far from over!