It tells the story of Ou Xiao An, an underground member of the Chinese Communist Party, who escaped from the Japanese army's biochemical poison gas research institute and joined forces with Tan Mo Qing to track down and reveal the secrets of the Japanese army's biochemical research and reveal the true face of Japanese spies.
In January 1940, Liang Shuo, an underground worker of our party who suffered a head injury, woke up from a blizzard in the mountains. He lost his memory due to the injury and came to Shanghai to search based on clues. However, his identity was caught in the roundup of the Japanese army, so he suspected that he was a member of the army. People from Wang Puppet No. 76 also found him and said that he was the director of the Operations Division. At this time, the "Peace and Co-Prosperity Conference" jointly organized by the Japanese and Wang governments is about to be held. A group of refugee workers who have been tightly imprisoned by Japan will also be pushed onto the battlefield after the conference, and their lives are at stake.
Set before the Battle of Changsha, this is a story about unsung heroes during a time of warfare and follows a man who learns to fight for a greater cause in his journey to find his father's killer. In order to occupy Changsha, the Japanese resort to using the 'black butler', a strategic agent that has been lurking in China for 15 years to carry out a long-planned deception. Yun Mu Zhi, a member of the underground party of the Communist Party of China, is killed while investigating the "black butler." Without knowing his father's true identity, his son Yun Hong Shen returns to their hometown of Changsha to track down his father's murderer. His father's friend and comrade reaches out to help him. Yun Hong Shen joins hands with Wen Ye Ming, a young woman impassioned by her sense of patriotism as they fight against innumerable odds. Setting aside his personal vendetta, Yun Hong Shen engages in a deadly game with Japanese agents to earn his countrymen a chance to win the war.
