The nightmare happened when dead has risen from their graves. Soon, the whole world was filled with zombies. You are fortunate enough to live this far as most of your friends are already dead and had turned into zombies. You know that you can't last in this world without a companion, so you search for them high and low. This time, it won't matter if they use to be bad guys as you just want someone to talk to and to help you defend the territory. Your goal is to eliminate all the zombies in each level. You need to switch weapons since the ammo are not unlimited.