Grendizer: Getter Robo G - Great Mazinger Kessen! Daikaijuu — Episode 1

Grendizer: Getter Robo G - Great Mazinger Kessen! Daikaijuu

A giant sea monster known as "Dragonsaurus" has emerged from out of nowhere, terrorizing the depths of the oceans. Great Mazinger, Grendizer and the Getter Robo G team join forces to combat the new threat. But their tas…