Day Zero

During the 22nd Century, science and technology had advanced beyond ethical bounds, driving humanity to reverse course. Global dictatorships violated the United Nation's Bioethics Treaty, secretly stockpiling arms. As a result, an oblivious America was attacked. Retaliation with augmented nuclear weaponry produced unforeseen effects, affecting most survivors in the Western Hemisphere and altering the rest. Those infected became ravenous beasts, feeding on the remaining population. Yet pockets of humanity endure.