The Elements of Harmony find themselves transported to a world full of evil and darkness. On the journey home they make new friends, as well as new enemies in the form of evil counterparts to themselves.
When one fateful search through the Everfree Forest leads Rarity to a secret library inhabited by the spirit of an ancient alicorn princess, she realises that it may be time to start believing in fairy tales.
Twilight Sparkle, Celestia and Luna are transported into a strange alternate Equestria, the Land of Always Summer, where the day lasts forever and a terrible queen rules with an iron hoof.