From 1940 to 1945 in the Republic of China, from the isolation period of Shanghai to the eve of the victory of the Anti-Japanese War, Shen Yanzhi established himself step by step at No. 76, Resolving the identity crisis several times, delivering key information between the Japanese puppets, military commanders, and the Youth Gang, and assisting the frontline operations of the Anti-Japanese War. Finally, on the eve of the victory of the Anti-Japanese War, he completed the "Falcon Plan" and destroyed the coordinate network of the Japanese army's secret arsenal in Shanghai, but he himself fell into the ultimate identity puzzle.