All Mickey had ever known was his own home. And for years, peace and prosperity had reigned. However, unknown to him, there is another magical kingdom in need of a hero.
Mario and co. are ready for a relaxing vacation with Peach's royal friends in Equestria. Little do they know that something so innocent will inevitable lead to their next big adventure.
One Thousand years ago, the saints Celestia and Luna drew upon the power of the Red Stone of Aja to defeat the demon Discord. Now one thousand years later the Stone is destroyed, beginning the tale of six ponies and their quest to redeem the world.