ZOMBIES, ZOMBIES, ZOMBIES! They are everywhere! Shoot the zombies before they kill everyone you love! You're trapped in a compound surrounded by the undead creatures with only one chance of escape, a helicopter ride at the other side of the installation. Arm yourself with a variety of high powered weapons and shoot your way to safety as the undead fall in masses before you. Only the onslaught can ensure your survival in this epic action filled zombie shooting game.