In 2025, Mr. M released a chip plan to the outside world in the name of benefiting mankind. The press conference was sabotaged by Enoch, a killer who escaped from the organization, and had to mobilize Xiao Yu, who was imprisoned in Death Valley, to carry out the task. Xiao Yu, who was dissatisfied with the organization's control and seriously injured, was captured by the X company controlled by Mr. M. Mr. M threatened him with Xiao Yu's wife and daughter to retrieve three source codes. Xiao Yu, an international top killer controlled by the organization, had to recover the source code chip for his daughter and wife, although he had justice in his heart. In the inner struggle, he embarked on the road of eliminating the killer of justice. And where will the fate of mankind go...