zombies dead zone

USA army created wall round dead zone to keep the zombies from spread round the world and zombies not from earth and zombies come from other dimension to go to war with earth and zombies are created weapons by the people from other dimension. dead zone City and wall is 500 miles away from the city. zombie are mutated. you can be whatever you want to be and you have to survive in the dead zone and you have 24 step sister and mom and Dad