In the vast expanse of space, a sinister plot unfolds on the desolate surface of the Moon. Dr. Zodiac, a brilliant but twisted scientist, harnesses the power of the cosmos to unleash chaos upon the Earth. With his loyal followers by his side, he commands starships armed with deadly ray guns and green death beams, threatening to plunge the planet into darkness. Amidst the chaos, Bruce Ross, a valiant Earth-Moon pilot, stumbles upon Zodiac's nefarious scheme. Driven by a sense of justice, he embarks on a perilous mission to thwart the evil genius and save humanity from impending doom.