Olive and Otto were two simple humans, working in an agency known as the Odd Squad back in the human world. But a gadget called the Pony-nator turned them into ponies and sent them into the pony world, along with their boss Ms. O, their scientist friend Oscar and a few other human agents. Can they ever get turned back into humans and launch back into the human world? Or are they destined to be stuck in the pony world forever?