Princess Celestia sends Twilight and her friends on a small mission, and the only way there is a spell. When the spell backfires, they are, instead, transported to the happiest place on earth! It's all fun and games until the park closes, there's no way out! But the 6 discover that when the park is left alone, evil is lurking in the shadows. It's up to Twilight, her friends, and some others along the way, to stop the evil that surrounds them and the park. (It also has a little bit of Kingdom Keepers crossover to it.)