Wang Jianguo, the male lead, is a retired special forces soldier who takes a job as a security guard at a women's school. On his very first day at work, a zombie virus mutates. While fleeing, he accidentally acquires an all-purpose map that can detect supplies and indicate the locations of zombies. He subsequently meets four female students: Tang Tang, Lin Qianqian, Su Jiu'er, and Qin Mo. With the help of the all-purpose map, they fight to survive and eventually escape to safety.