It was once the natural law that there were two rulers or Equestria, one for the sun and one for the moon. Two Princesses of power and grace that watched over the gentle ponies of their land. But, unknown to everypony except the sky princess, Celestia, there was another. A Prince, strong and golden. A jealous brother who sought to rule all in flame and glory. Back in the olden days, he was defeated and brought to rest, but now, in the days following the rebirth of the Elements of Harmony, the resurrection of Princess Luna and the creation of a new Alicorn Princess, he has risen again.

With the Elements of Harmony scattered across the dead lands beyond Equestria and Twilight Sparkle, Applejack and the rest gone looking for them, the Prince's power grows. But the quest is just beginning, other ponies will rise to glory and other ponies will fall from it.