On May 27th, 0 years B.Z, a horrible virus has swept through Equestria, infesting it's pony population into the living dead.

However, on the same day, a stallion was injected a modified strain of the zombie virus, and survived. Now, it's up to what is left of the Elements of Harmony, backed up by Flash Sentry and several more ponies to get the immune stallion to a lab in Canterlot to use his blood to create more of the zombie antibodies. Backed up by Winger, Canterlot's eye-in-the-sky, the group has a fighting chance against the undead hordes...