Undercurrent: The Spider’s Secret Words

Ye Yifan is a member of the Secret Investigation Division of Xiazhou's Military Intelligence Office. How can he cleverly expose the secret that the Dafuxing Trading Company in Nanjiang City is actually a hidden base for Yingzhou spies? Through careful analysis, he deduces that the company is involved in smuggling and successfully persuades the Dali Temple to take action. Ye Yifan assembles a team of spies, each with extraordinary skills, to carry out a covert arrest operation. They capture the Yingzhou agent Ye Wuer, and during interrogation, force him to reveal the spy network. While resolving internal financial problems, Ye Yifan receives a new mission: investigate the kidnapping of Tang Chengshang's son in Jinhu and gather evidence of crimes committed by Hu Linyi's disciple, Lü Yitao. In Jinhu, he works with the local spy Liu Liu to devise a rescue plan and engages Lü Yitao in a battle of wits, eventually reaching a preliminary agreement to free the hostage. From then on, he embarks on a path of solving cases as a Secret Investigation Division spy.