The mathematician heard the helpless screams from the building next door, he had a decision to make, he knew that the zombies were advancing, and he was running low on supplies. So he decided to go out into the wasteland, sneaking around, just hoping to find somebody alive…all he found, was disappointment. The cities were in ruins, there was fire everywhere and he struggled to stay away from the zombies. He thought that he was a goner, he had no supplies left, and he was tired. Then he remembered, about the formula. Just days before the incident, he was contacted by a stranger foreboding him of this exact event and where he could go to stop it, he had just shrugged it off, but now he was desprate, and had to do something, the mysterious man had said that there was a building, a couple cities over, where he could take refuge and put a stop to "i"t. The mathematician was also told a formula, the man said that this formula, would be the key to saving mankind. Shocked, it hit him, he was the last hope…