Nightmare Moon is gone, vanquished by Twilight Sparkle and her brave entourage of amazing friends just after meeting one another for the first time. Redeemed from her twisted state, the former Princess Luna returned to the side of good, ever so grateful of the forgiveness her sister, Princess Celestia, offered to her.

And to most everypony, this is where it ends. The two loving sisters were reunited and Equestria was once again guided under their collective wisdom and kindness all across the land. But along the fringes of Equestria, in a small etch of land where the moon never sets and the stars always shines, lives a small cabal of powerful ponies with a zealous intent.

Recruiting the likes of a disgruntled young man with the mysterious power to both travel between and fuse together realms of reality, the final key to a grand plot may have finally been acquired, setting in motion a path of destruction that will shake Equestria to its very core.