in the third year of jianwen, li wu (played by zhang yunlong) from jige lane saw that wang kegong, the assistant of jinan prefecture, transferred his wealth to nanjing city with thousands of wealth, and then stole the famous letters of li dongfang from the brocade clothes and sneaked into wang kegong's mansion, dreaming of successfully stealing treasures and gaining wealth overnight ccc。 unexpectedly, undercurrents were surging in wang kegong's mansion, and li wu was forced to be involved in a battle between the former dynasty firearms surrounding the fish lock. li wu, who was originally an outsider, became the holder of the fish lock and fell into the center of the vortex. when he was a child, song zhen, a child who rescued li wu from the prison, has now become a jinyiwei lu zheng (played by chen ruoxuan), and has become a colleague with li wu and does not recognize each other when he meets him. shu tang, a girl who was once in the same cell as li wu, became a spy with li wu, and completed the task of not accepting him at night. the darkness and cruelty of the dispute between the government and the country made the relationship between the three test in a chain-like conspiracy. when the moment of dynasty changes comes, all wars and unsolved mysteries will come to an end.