The story continues from the previous season. After being promoted to the capital, female detective Shen Junye follows Li Chengqi, the leader of the Shenbo Division, to solve many unsolved cases. In the end, she unexpectedly learns that Li Chengqi is her fiancé Lu Xiaobai in disguise. The two lead the Shenbo Division to fight wits and courage with the evil organization Qianren. After going through hardships, they finally completely eradicate Qianren, who has caused great harm, and the lovers finally get married.