Now the world champion, Rocky Balboa is living in luxury and only fighting opponents who pose no threat to him in the ring, until Clubber Lang challenges him to a bout. After taking a pounding from Lang, the humbled champ turns to former bitter rival Apollo Creed for a rematch with Lang.

Sean Barker became the unwilling host to an alien bio-armor known as the Guyver. A year ago he destroyed the Kronos Corporation, an organization of mutants who want the Guyver. Now he is trying to find why the Guyver unit forces him to fight and kill evil. He is lead to an archelogical site where scientists discover an ancient space craft. Now he must fight Kronos again before they discover the secrets of the Guyver's origin.