The Earth's destruction lies dormant within a single, solitary seed. Brought forth from the darkest reaches of space, the Tree of Might has been sown with the vilest of intentions. Once it takes root, nothing else can survive. A plant designed to drain the energy of a planet, it steals the very essence of life only to blossom in death and desolation. Unable to fell this mighty threat, Goku and the Z Warriors must instead confront the harbinger of the evil, a Saiyan bearing an uncanny resemblance to our hero: Turles. This new enemy kidnaps Gohan and sets the son against the father, a tragedy which only delays the inevitable fight. As Goku finally faces off against his deplorable double, Turles turns to the thieving tree...