After the thirld world war, due to the atomic destruction, the core nature balance is destroid. People are becoming zombies and trying to kill eachother. The planet is becoming more and more planet of living deads.
One person in this mess found that inside a core lab, there is a cure to bring back the balance, she is trying hard to get the antidote. She needs to kill few of the Zombies as there is no other option.

Fight your way through wave after wave of rotting zombies out to eat your flesh.
You're stuck in the middle of a zombie apocalypse. Gun down the zombies.
The apocalypse is here, and the zombies are hungry. It's kill or be eaten