In a world where giant monsters and humans coexist, monsters compete in a popular professional wrestling global sport known as monster wrestling, with each city having its own monster wrestler. After the current wrestler for the small town of Stoker, the shark-like Tentacular becomes the new world champion, he announces he no longer wants to represent Stoker. The townspeople are later told if they do not find a new wrestler, they will lose the town's stadium and its revenue, which prompts wrestling enthusiast Winnie Coyle to search for a new monster representative for her town.
