Theme park mechanic Sam fantasies concerning his childhood sweetheart Sue. With the mistaken belief that merely a ring can secure the girl of his dreams, Sam plans the nighttime to propose for his one true love. But if super-villain Oscar turns Sam's plans have been thrown into absolute disarray. Mistaking each other's rings for their own, Sam teams with his robot's super personalities to track down his gemstone and also save the town... learning that it's not about the size of their bling, but the size of one's center.