Higeoyaji's pet dog Pero has a diamond that it took back from space. Dr. Fooler puts Pero's memory into the computer of Captain Dog, the robot dog, to make it find diamonds. Astro follows the robot dog, which is heading for Mars.
Higeoyaji's pet dog Pero has a diamond that it took back from space. Dr. Fooler puts Pero's memory into the computer of Captain Dog, the robot dog, to make it find diamonds. Astro follows the robot dog, which is heading for Mars.
