Space villain Big Nose shrinks several planets in the galaxy in order to make a personal marble collection. He collects a mound of soil from Earth before adding it to his collection as well. Pink Panther, who was in the mound, is the only one who's normal-sized enough to save Earth and the other planets against the evil space villain. Once he dons a space suit, he's able to utilize it to escape Big Nose and restore the planets to their normal size, and becomes a hero in the process.