It is well known throughout Equestria that Discord, the spirit of chaos, once ruled over the land with an iron claw, plunging the world into complete disharmony. There was, however, another creature who ruled over Equestria. His reign was legendary, and his word, absolute. Few dared to defy him, and those who did were never around long enough to regret such a decision.

Only one disorderly spirit ever betrayed the dark king and got away with it, but that spirit may not have been as successful as he once thought. Now, when an old enemy returns from centuries of banishment, Discord may have no choice but to turn to his new "friends" for assistance in dealing with him. However, with the Elements gone and their new enemy's power seemingly limitless, will Equestria's six protectors be enough to stop this vengeful demon?