The Call of Duty Mega Bloks Mob Of The Dead Alcatraz Zombies 06857 is a retired building toy set featuring interlocking blocks made of plastic. Released in 2014 as part of the Call of Duty product line, this set is designed for ages 12 and up and includes zombie characters from the popular video game franchise. Without the original box, collectors and fans can still enjoy the unique and detailed construction possibilities this set has to offer.