A giant asteroid is on a collision course with Earth, so the end of the world is fast approaching. But not if Goku has anything to do with it... So he and Krillin race to rescue, using their incredible powers that narrowly deflect the asteroid from its deadly course. The Earth is saved...or is it? The powerful new enemy, the evil overload, Lord Slug descends from the surface of the asteroid. He and his forces have come to Earth to steal its natural resources. But in the process they intend to wipe out the entire human race! It is only when Lord Slug discovers the seven magic dragon balls. That it seems nothing can or will stop his plan. Now that evil Lord Slug has the power of the dragon balls in his grasp can even Goku save the Earth form the clutches of this mysterious invader?!