Aliens have invaded Equestria, infecting ponies with a disease that transforms them into mindless, flesh-eating zombies that only follow alien rule. Some ponies have been able to become immune to the disease with the help of a special drug, one of them being a young foal named Star Goal. But now, the disease is evolving, and more zombies are appearing each day. Now, Star Goal and his new trusty dog Winona must race against zombies, aliens, and other survivors in order to find the almost-mythical safe haven for a better future.