A large and powerful cult, headed by the enigmatic Nihil, has sent an amnesiac human into Equestria with unknown intentions. As the Main 6 and the Princesses try to unravel the mysteries behind the human, they are unaware that their greatest challenge is lying just around the corner. For it isn't just their physical prowess that will be put to the test; it will be everything that they base their beliefs around.

If they fail, not just their world will fall, but all worlds…