Coral Bay is in trouble! Pearls are missing, snacks are stolen, and someone’s left graffiti on the Coral Castle. Everyone blames Finn the Shark—just because he looks scary. But Finn isn’t the villain. While the town points fins, he quietly helps others, hoping to prove he’s more than his teeth. When the real culprit—a sneaky narwhal named Narson—is finally caught, the sea creatures learn an important lesson: You can’t judge a book by its cover… or a shark by his smile.