Fallout. With ponies! Set in an alternate future, one pony must learn to survive in a blasted, poisoned land... and possibly, with the aid of friends made along the way, bring new light into the darkness of post-apocalyptic Equestria.

Ocellus is trapped in a palace infested with a brood of love-starved changelings and their queen who are intent on using her only way home as a means to invade her world.