The end of the world has been underway for three years. In the cabin in the middle of the forest, you were by yourself. Your friends? Gone. Family? Gone. Crackers? Gobbled. In this brain-eating, lonely world, there is only you.

Maybe it is what you believed.

From the cabin's exterior, you could hear a low groan. You were shocked to see a man cradling his arm as if he was wounded.

"Oh, f*ck," he winced in anguish. "Please help me." He seemed to have been bitten and had already altered.