"When a nuclear catastrophe lays an entire civilization, the Green Empire, to waste, its remaining inhabitants turn to the only method of survival they can think of: they take human beings into captivity and force them to rebuild their empire. Sent to rescue the captives are Captain Leo and his Cosmos Warriors. He strikes a deal with the Queen of the Green Empire, but when she refuses to let the captives go and orders the assassination of all the Cosmos Warriors, Captain Leo must prepare for a battle with much more at stake than just the well being of the captives. The fate of humanity just might rest in his hands." Official Synopsis. Hong Kong English Dub of the 1978 South Korean cartoon "Black Knight of Space" (우주 흑기사)

When the evil T. Devil wants to take control of the galaxy, he enlists Andrew to help him in his quest for inter-galactic domination. Andrew starts capturing all of Earth's spaceships in order to investigate the planet. Meanwhile, on Earth, the scientists become curious about the disappearing ships and form a squad to investigate. When Andrew begins the invasion, the squad must enter into an epic space battle with the aliens with the fate of the world at stake. Can mankind overcome the awesome power of the alien invaders and save the world?