在冥王计划志雷马世界里，一群黑龙组织暗中策划着统治全人类的阴谋。他们研发出的巨大铁人军团以实力强大的八卦龙为首，令人瞠目结舌。在过去十五年间，作为叛徒的木原正树 steals away the most important part of Iron Man and secretly arrives in Japan. He was then taken into custody by a government agency called Amatsuki for his crimes. The story revolves around the struggle between black dragon organization and Japanese Government Agency as well as their attempt to create an Ironman-like suit that can challenge the power of Black Dragon Organization's leader, Augustus.