In order to escape capture by the crystal empire, a lone changeling escapes to the human world. Once there, he becomes the guest of the human Apple family. But things aren't as great as they appear to be for our hero, as an obsessed crystal guard comes to the human world as well with intent to hunt him down, no matter the cost. And to top it all off, that's not even really the biggest worry on our unlikely hero's mind.

The Goblin kingdom, a surprisingly docile and passive people, who only attack in self defense. Which is good for everyone else, because the goblins have one of the most dangerously efficient military systems in the world. Crossing these people is suicide, so most countries just leave them alone. But, when an opportunistic dictator seizes control of the kingdom and forces the people into a crusade against the rest of the world, with Equestria being their first stop, the kingdoms of Equestria must band together to defend their homes against an overwhelming threat. Friendships will be tested, blood will be shed, and moralities will clash. If Equestria burns, then the world will burn soon after.