Scientists finally broke the code for eternal life, unfortunately they tested it first on those who had already died. It brought the undead back to life. Walking zombies killing anything alive forced humanity to hide in bunkers and weather the storm. After some time, survivors started emerging from bunkers to find the dead still walk the earth. Now these survivors must do their utmost to delay their inevitable death by scavenging the world and relying on their own cunning, luck and ability to evade the horde.