In the 1940s, the ancient Chinese land was being ravaged by the iron hoof of Japanese imperialism. The forces of all parties are intertwined, and a series of fights and amazing legends worthy of being written down have been staged on this land. Tianjin Wei, the lower end of the Jiuhe River, is the location of the International Concession, and it is also one of the cities with the most intense struggles among all parties. Shen Xilin (played by Huang Bo), the manager of Donghua Foreign Company in the French Concession, is a man of wealth, suave and graceful. There are all kinds of speculations about him in the world, but only Shen Xilin himself knows that his life is not only about business, but also about the fate of his country. He is the director of the intelligence agency of the Wang Puppet Regime in Tianjin, and he and the socialite Mo Yanping (played by Yuan Quan) have handled a lot of important intelligence related to the world. In addition, Shen Xilin has a crucial identity that is unknown to the public. In the dangerous city where Chinese and foreigners are mixed and enemies compete with each other, Shen Xilin will witness the most important moment of historical change...