From Republic's press release: ""A strange garbled message convinces Commando Cody that the Ruler is trying to contact his agents on Earth. Cody tries to find the Ruler before he can carry out his newest plot."" Commando Cody discovers that the Ruler is on the Planet Venus. Ross and Hardy learn that Commando Cody plans to fly to Venus and they sabotage his rocket ship. However, Cody manages to land the crippled ship on Venus and confronts the Ruler. The Ruler reveals his plans to conquer Earth and other habitable planets. He shows off his weapons of conquest. Cody manages to bury the ""Ruler of Outer Space"" in his operations cavern on Venus.