An ultra-modern spaceship the size of an entire city is plowing through the endless space of space. A thousand years ago, people left their home planet to find a new place to live. But at some point, all the robots on board went out of control... Most of the passengers died. Now there is a fierce struggle between a small group of survivors and the evil Zoid robots. A young man named York is a zoid hunter, he hunts them down and kills them in order to disassemble them into parts necessary for protection. On one of these forays, he and other hunters are ambushed. York manages to escape, but from now on he is the only one who can save his family from the attack of deadly robots!