When Shanghai fell in 1937, Shen Yan, who was originally the editor of a patriotic newspaper, was ordered to sneak into the Wang Puppet Secret Service "No. 76" Because his family was murdered by the Japanese invaders and his comrades died. He used his fake position as a cover to secretly work for the CCP underground. The party passed on core military intelligence. Surrounded by Japanese invaders, traitors, military agents, and traitors, they fought step by step and escaped from death. They spent ten years in hiding to hold on to the fire of Shanghai's underground front and usher in the dawn of victory in the Anti-Japanese War.
