Attack from Space

An alien fleet orbits Earth, targeting it for conquest. Mankind is defenseless against the threat of extraterrestrial invasion, but a powerful ally is determined to prevent the impending assault. Sent by the peaceful planet Emerald, Starman possesses the knowledge, strength and bravery necessary to stop the aliens. Discovering a conspiracy involving Earth's top scientists, Starman must race against time to uncover the traitors and prevent a war that will shake the foundations of the universe... Originating as two episodes of Japanese television series Super Giant.