Dragon Ball Z: Lord Slug, the fourth Dragon Ball Z movie, was released in Japan. It is the first movie to feature the transformation Super Saiyan 3 not yet depicted but power levels and unique transformations start being explored more.
Lord Slug, an ancient Namekian and space pirate, awakens from his space pod and sets out to conquer Earth.
Lord Slug arrives on Earth with his forces, beginning his invasion and terraforming plans.
Goku, Piccolo, and the Z Fighters assemble to fight against Lord Slug and his minions.
The Z Fighters engage Slug's troops and struggle against their overwhelming power and the spreading of the artificial vegetation that threatens Earth's biosphere.
Goku confronts Lord Slug directly and fights fiercely while trying to stop his attempts to take over Earth.
Goku powers up to his full strength, unleashing a powerful energy attack that defeats Lord Slug and restores peace to Earth.
