A sudden zombie virus sweeps across the globe, causing civilization and social order to collapse overnight. Lu Jinyan, once an ordinary salesman, awakens his former special forces combat instincts the moment the apocalypse strikes. Faced with his tyrannical boss, panicked colleagues, and the constant threat of death, he refuses to tolerate anyone's nonsense any longer. One powerful shoulder throw wakes everyone up and sets him on his own path to survival in the apocalypse. From escaping an office building to surviving in a hospital, from scavenging supplies to assembling a team, the cold-blooded and decisive Lu Jinyan repeatedly clashes with Su Wanning, a female doctor who remains true to her medical principles, but the two gradually learn to support each other.