An anonymous letter on a rainy night tore apart the tranquility of Jiangcheng - reporter Shen Zhiyuan was attacked by mutants in an abandoned water plant, and unexpectedly uncovered the genetic conspiracy behind his girlfriend Lin Xiaoyu's car accident. In the name of "eliminating out-of-control mutants," the scavenger organization actually cooperates with the Entropy Group to conduct human experiments, and Xiaoyu is the "Experimental Subject No. 073" Who holds key evidence.
When Shen Zhiyuan followed the clues and sneaked into the underground laboratory of the People's Hospital, he discovered that Jiang Wantang, the scavenger group, actually had the same gray spots as the mutants. As the investigation deepens, he gradually comes across the terrifying truth of the "Undertide Project": Entropy Group CEO Lu Chen intends to activate human latent genes through improved viruses. The success rate is only 3%, and the remaining 97% will become irrational monsters. As the first successful product of the Scavenger Project, Jiang Wantang is being controlled by Lu Chen and becomes the perfect container for genetic experiments.
During the escape and confrontation, Shen Zhiyuan teamed up with former entropy-increasing scientist Gu Beichuan and the mutant underground organization to embark on a life-and-death journey to reveal the truth. From the gene black market at the western suburbs dock to the ultimate showdown in the offshore laboratory, he must prevent the release of the virus within three days, and at the same time uncover the mysterious connection between Jiang Wantang and Xiao Yu - who is controlling the evolution and destruction of mankind behind this gene hunting?