In an alternate universe, Shining Armor and Princess Cadence's wedding was never ruined by Queen Chrysalis. Instead, the changeling queen attempted to take hold of Equestria by feeding off of the love that Twilight and her friends shared. Now, with the Elements gone, the queen seizes her opportunity to seek revenge upon Twilight and her friends. However, the arrival of a stallion with a troubled past, threatens the efforts of the queen in ways she could never imagine.