When animals begin disappearing from the Everfree Forest. Twilight and Fluttershy go to get the one pony they know that can fix it, Princess Celestia! Will she be able to restore the balance of the Everfree? Is she willing to?

Twilight and her newfound friends find themselves stuck in a forest with a bunch of scary trees! Its up to Pinkie to show those trees whose boss with disco stomping power!