The new dolphin at the aquarium, Ripple, is surprised that no one will play with her. No one plays or has any fun at all, because of Snark and his shiver of sharks. At first, Ripple is intimidated by their bullying, but her trainer reminds her that happiness is a choice, and that we can each make the world a better place because of who we choose to be. Choosing to have fun, Ripple challenges Snark to a staring competition―if she can make Snark smile, Ripple wins and everyone gets to play. If not, Snark's no-fun rules will rule. Will Ripple's smile be enough to save the day?