Xia Ruoning is an enemy spy. In order to hide his identity, he has been lurking around Liu Zhaoen for many years. Unexpectedly, I finally married Liu Zhaoen, but my identity was seen through. Xia Ruoning and the organization behind her failed for many years. Xia Ruoning was unwilling to plan bankruptcy, so she decided to retaliate against Liu Zhaoen and worked hard day and night to try to harm Liu Zhaoen.

From the 4 1927 incident to the 12 Sino-Japanese War, Gu Xing, a small person in Shanghai, squeezed into the patrol room of the French Concession to become a fast catcher, intending to get ahead and win Xia Ruoning's heart, but he was accidentally involved in the case of counter-revolutionary forces in Shanghai and Japanese spy organizations. He found another way to solve this unsolved case, which protected Zhu Xueru from persecution, while Xia Rening unexpectedly disappeared because of him. Gu Xing was also kidnapped when he hesitated. It turned out that the Kuomintang Bureau of Investigation mistakenly recruited him for reconnaissance training, and was later placed at the top of the northeast warlords. With the help of Zhu Xueru's adopted daughter, Tang Wuyu, he took advantage of the situation to expose the Japanese separatist plot, and urged the northeast warlords to change their names to ensure national reunification.