In the late Qing Dynasty, the society was in turmoil. In the deep palace, the treasure map of the Jingtan in Wenyuan Pavilion was stolen. In order to compete for this treasure that could almost change the world, various forces were ready to move. And the imperial guard Sandao (played by Qin Junjie) who had received the imperial sword was also dispatched by the Ministry of Internal Affairs to retrieve the treasure map and find out the forces behind it. At this time, a murder occurred in an inn in Dagu County, Tianjin. None of the nine people who returned from Japan survived, and their deaths were tragic. Wang Dibao (played by Pang Hanchen), a county constable who gave up his pen and joined the army because of the abolition of the imperial examination, rushed to the scene. With his rich knowledge, he judged on the spot that the case was committed by the Rongtianling disciples in Lingxi area through the scars and methods of the deceased. In order to bring the murderer to justice, Wang Dibao pursued the murderer alone despite the opposition of the county government. On the other side, Zhuo Bufan (played by Liu Yuning), the head of Rongtianling, had just received a report from his men-nine people had been killed and the contact information was obtained. It turns out that the location of the Jingtan secret treasure has been a secret that the court has been unable to find for many years. Recently, Prince Qi (played by Liu Peiqi) received news that the secret to opening the treasure is in the hands of Tan Xian (played by Zong Fengyan). Prince Qi is determined to implement reforms and needs a large amount of money to turn over; and Zhuo Bufan, in order to glorify the sect and pass on martial arts, established a headquarters in the Central Plains, which also requires gold and silver to lay the foundation and obtain the support of the court; therefore, the two people with different purposes hit it off and decided to join forces to seize the treasure! Zhuo Bufan, who is eager to revive the sect, immediately rushed to Shanghai to find Tan Xian based on the intelligence; Men Sandao, who is loyal to the court, quickly solved the case through reasoning, targeted Zhuo Bufan, and went to Shanghai to retrieve the treasure map; Wang Dibao, who is conscientious and responsible, also rushed thousands of miles to catch the murderer. The three people each set foot in the foreign land with simple but firm goals, but they didn't know that from this moment on, they were forced to be involved in a magnificent historical wave.