This story is a sequel to Fallout Equestria: The Light Within

Over a hundred years ago, the War raged between the Kingdom of Equestria and the Zebra Empire, but these two great powers were not the only players on the world's stage. Lying in a position both advantageous and perilous between the two warring nations was the Griffin Commonwealth, which miraculously managed to maintain its neutrality while selling technology and soldiers to both sides. They would be spared the worst of the Last Day, when the megaspells fell and burned the world, but were not safe from the side effects of their trading partners' deaths, nor even from the spellfire entirely. The Commonwealth, like the rest of the Old World, died.

Cast out from his homeland, it is in this place that Doc finds himself, among the griffins. Yet even if this place, unfamiliar as it is, he seeks to find a way to live in a post-megaspell world and to find some common ground with his new neighbors.