Since 2 months from Thomas’s 6th birthday, and after a few adventures, Thomas and his family take a vacation to the Crystal Empire to relax and hang out with Princess Cadance and Captain Shining Armor for their wedding anniversary.
When Thomas discovers a strange looking mystical mirror with an alluring reaction, he is accidentally lost in the other side, until the 30th moon closes the portal and leaves the poor boy trapped in the other world.
Inside this strange new world, Thomas encounters a strange version of creatures that reminds Thomas of his human species, but seem oddly colored and similar to him.
Will he find help, or will he be trapped for another 30 moons, meaning this world can become his home forever?