Nobody knows where they come from or who is behind it all. The public just become aware of them since they have eaten and infected half of the population. The only way to kill them is to blow their head, which is a little hard if you are not an expert. The government are concerned and they want to solve the problem with the undead, so they have sent in the best guy for the job. they have sent him in the most zombie infected area. Immediately, the zombie begun ganging up on him, but his training has long prepare him for such assault. He wasn't surprise with the zombies and has begun killing them one by one. He wasn't the first guy that has been sent by the government as there has been a lot already. Unfortunately, they all meet their end at the hands of the zombies. Their weapons were left their and no one seems to have the courage to get them. Everyone is scared and hiding in the comfort of their homes. This is a good opportunity for you since there would be lots of weapon available for you to use. All you have to do is pick it up to use use it. The game is about survival and you need to be able to survive as long as you can, which means that there won't be any time out during the game. You start off with a machete, but you can get some guns since they would be dropping from the sky. As you make some progress, your level would go up and there would be lots of different weapons available for you to pick up. The game gets harder and more difficult as you make some progress. That is your challenge.