Long ago, an evil magician used his powers to bring a statue to life - creating the terrible monster, Hirudegarn! It was only through the use of two magic whistles that Hirudegarn was defeated and peace retuned to the galaxy. Two courageous brothers, Tapion and Minosha, took control of the whistles and sealed them, along with their own bodies, in magic boxes, which were cast out into the galaxy so Hirudegarn could never be revived again. But when a mysterious stranger named Hoy arrives on Earth with the secret of Hirudegarn's revival, the Z fighters must turn to Tapion himself to answer Hoy's dangerous threats. Tapion has once before sacrificed his well-being to save the universe. With Hirudegarn destroying everything in sight, Goku, Trunks, and Goten must battle like never before in order to save the planet!