By the year of 2200, people have started to live on the Moon and Mars. Joe, who has been raised in Mars, witnesses a battle between aliens. His ordinary life is suddenly ended and he is thrown into intense battles.
A military troop from Planet Zaboom attacks an army convoy from Planet Rudorio, which is escorting Princess Romina. The emperor of Zaboom, who conspires to seize control of the universe, tries to capture the princess. Joe and his friends, who witness the battle, decide to help the Princess by mobilizing robots of the convoy. However, they face a tough battle with the fully armed enemies troops. During the fight, a mysterious ninja robot, Tobikage, appears to help them! Nobody knows anything about Tobikage. Where and why does it comes from?!