The Super-Brain was an extra-terrestrial scientist who came to Earth some time before the 1940s. He set out to conquer the planet, but he didn't have the resources or manpower to pull it off. He allied himself with the Axis powers, who were more than happy to provide him both in exchange for his help with their own imperial ambitions. He worked directly under Hitler for the first two issues, but he seemed to have shifted his allegiance to Japan by Ranger Comics #4. He came up with several plans (both covert and overt) to destroy America, but he was stopped at every turn by Rangers of Freedom and the Ranger Girl.