To replenish their riches and boost their economy, a species of aliens known as Gippox travelled to Planet Earth where they confiscated minerals, oceanic creatures, humans and other supplies. The Gippox have been to Earth before and had a friendly history with humans; however, following a fallout the aliens assumed they were a superior species beings and began enslaving people. After the son of a Japanese scientist get kidnapped, to locate and return the child his father deployed a prototype robot, which found a way to get aboard the alien's spaceship.