Peace on Earth is disrupted when a giant tree emerges, threatening to absorb the planet. Goku faces the sinister Saiyan pirate Turles, the mastermind behind this menace.

The Saiyajin named Turlus has come to Earth in order to plant a tree that will both destroy the planet and give him infinite strength. Son Goku and the Z Warriors cannot let this happen and duke it out with the invaders for the sake of the planet.