In Nanjing in 1942, Jiang Minyun, the technical director of a telecommunications company, died online. No one could prove that he was a military reunification agent. Japanese and puppet spies are everywhere, and he can only survive by using commercial shells - until the bulletproof protective gear drawing in his memory is targeted by the Mei Agency. No. 76 Forced him to "cooperate" in developing military industry, and the Japanese army asked him to hand over his core technology. Jiang Minyun pretended to be around, secretly stuffing body armor into underground transportation lines, and using raw silk and spring steel in exchange for intelligence, hostages, and evacuation passages. But Japanese Army Major Ishihara Sadaharu began to doubt his multiple identities, and Wang Puppet Agent Gu Qiaozhi even wanted to uproot him. The most dangerous mission has come: escorting a group of top telecommunications experts to escape Nanjing. Jiang Minyun must use a bulletproof blueprint that is never enough material to deceive the three parties and save everyone within 72 hours - or send them to die with his own hands.
