A strange signal arrives on the Earth disturbing all communications, while an UFO appears above the Antarctic sea. Captain Alex Hamilton is sent with his spaceship and crew to the space outside the Solar System to find the origin of that signal. They reach an unknown planet where a giant robot enslaved a whole population of humanoids by taking their psychic energies.
Alternative titles: War of the Planets | Batalha no Espaço Estelar | Guerra entre planetas | Battle of the Stars | Slaget om stjernerne | Planeettojen sota | Tähtien sota | Mahi st’ asteria | O polemos ton planiton | Cosmos: War of the Planets | Slaget om stjernene | La Guerra de los planetas | Война планет | Cosmos: Situación limite | Slaget om stjärnorna | Cosmo 2000 – Planet Without a Name