Five years after winning the ‘Strongest Under the Heavens’ fighting tournament, Goku has settled down with a wife and his infant son Gohan, when a visitor appears. The visitor, Raditz, claims that Goku is a Saiyan Warrior, a member of the most powerful race in the universe, and threatens to destroy the entire human race. Goku races to stop him and finds an unlikely ally in Piccolo, his old archenemy...