The story of PonyX is about a pony that grows up to be an outlaw in Equestia. In disagreement with Celestia's methods of protecting the world, from Nightmere Moon, PonyX goes on a quest to break the spell that keeps her locked on the moon. She hopes that she can find a way to cure her, but to do so Nightmere Moon must be freed. Is PonyX on the wrong side of the law? Only time can say. Through all this, PonyX finds she has a strange power that can aid in hiding her from Celestia, so she an travel the world looking for the means to bring Luna back and fulfill Star Swirl's prophecy.