Professor Shishio and the GGG team are working around the clock to discover the secrets behind the Zonder Metal. This strange substance is turning the people of earth into bio-mechanical monsters. As the enemy steps up, GAOGAIGAR recives backup in the form of Volfogg, the recourceful ninja AI Robot developed by GGG's on computer genious, Entoji. But then Entoji's old rival, Inubouzaki, infultrates HQ as a Zonder virus. Mamoru and Volfogg are sent on a desperate race against HQ's own self-destruct! When the Zonder Robo attacks, the Gao Machines can't boot. Gai leads the GGG team on the first ever manual docking to finally form GAOGAIGAR!