When the end came, the whole city begged for the only antibody, but Ji Yu overturned the laboratory in public and burned the samples. Qin Xiao, a mutant who had been his assistant, followed closely behind, screaming like a madman about the truth about evolution. Shen Zhuo leads the black flag to siege the city, while Bai Yan is doing everything in the name of science, but in the dream of the orphan girl Xiaotong, his sister's dying whisper reappears - antibodies are not the antidote, but the key. When human beings kneel down and beg for mercy, who really deserves to be destroyed?