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.
Twilight casts a spell and it doesn't go to plan, now there are four newcomers to Ponyville. The Mane 6 must teach them how to fit in until they can figure out how to get them home.
Vinyl Scratch has a secret, one that she's kept hidden away from all the rest of the other ponies, it's one that she can't speak about or say, even if she wanted to. And that's because she is really mute.
Facing starvation in an endless winter, the young filly Celestia attempts to raise the sun... and finds a wonder that her cynical mind had never conceived.