After high school student Son Goku (Justin Chatwin) finds his grandfather Gohan (Randall Duk Kim) murdered at the hands of an evil nemesis Piccolo (James Marsters), Goku is left with no choice but to avenge his grandfather’s death. Goku soon learns that Piccolo is desperately searching for a Dragonball which Goku actually had in his possession as a gift from his grandfather. It is now his mission to find Muten Roshi (Chow Yun-Fat) who has another Dragonball, before Piccolo can obtain any more of the seven Dragonballs which would allow him to summon the dragon Shen Long for the ability to end the world. Goku soon finds that Piccolo will stop at nothing to retrieve the Dragonballs.