When a magical experiment backfires, Applejack finds herself in the midst of a dystopian nightmare that pits pony against pony amidst the omnipresent threat of war with the neighbouring griffon empire. With only her wits, and a ragtag band of earth pony resistance fighters to aid her, Applejack must confront both her former friend, and the reality that she may never get back to the world she knows ever again…