The main character, xiao Ming, seems to be caught in a trap.The first was a mass zombie siege on the streets.After repelling zombie group, be attracted by a few mysterious black shadow to a building site, although discovered a few clues, but immediately fell into the encircling circle of the corpse.It was not easy to escape, a series of fierce battles, xiaoming has a little tired, but this did not stop his pace forward.After successfully entering the laboratory, xiao Ming made a stupid mistake and forced himself into the underground of the research institute for investigation. In the scene like an underground maze, he almost ran out of ammunition and ran out of food.