Dragon Ball Z: Super Saiyajin da Son Gokuu EP1

Once again called upon to save their planet from disaster, Goku and Krillin race to head off a giant asteroid on a collision course with Earth. The threat deflected, their home is saved? Or is it? A greater menace looms in the shadows, a being so evil that he was banished from his old world and now seeks to create a new one of his own. Lord Slug, prepared to dominate by freezing all opposition, seeks out the seven Dragon Balls. Fully restored to youth and more powerful than ever, the Z Warriors soon prove no match for this ancient enemy, a Namekian with abilities from lore and legend. As Goku falls, another must step up before all is lost.