The fate of Equestria is once again threatened when thieves from another dimension somehow manage to steal the Elements of Harmony. Now, with the kingdom's strongest defense missing and Equestria open to attack from anything and everything, Twilight and her friends set out to bring the Elements back before the kingdom falls and they have nothing to return to. It sounds easy enough, but the enemies that they will face will be harder than any other foe they have faced before- themselves!