Synopsis

Marshal Armor has created a Pluton Rocket of such force it surpasses even the H-Bomb, and the Great Leader commands its aim be set upon Tokyo. Shiro and Joji grow wary when a group of mountaineers are found dead in a remote valley, their demise unexplained. Their investigation leads to an ambush by mutant Crawganna, guardians of a Destron missile base. Yet, V3 and Riderman are unable to prevent Marshal Armor from initiating the catastrophic countdown.