Wu, played by Michelle, is a great woman. Wu's prototype won a third-class merit in the police academy. On the surface, he is careless, but in fact, he is very careful and has worked with Gao (WU GANG), the leader of his "Action Group", for more than 20 years. He is a master who can analyze a case from details. As Gao's deputy, your deputy Ke, with Gao's cooperation, played an important persuasion role in the negotiations.

Interpol's overseas operations have three persuasion targets: Shi Yanan, Frank and Song Chenggong. They are all tainted witnesses in Liao Qidong's case. Because there is no protection system for foreign tainted witnesses in China, witnesses must go to the scene, and investigators must bring the above three tainted witnesses back to China to testify. Because of different backgrounds, different degrees of involvement and different criminal punishments, the three men adopted different strategies and methods.

The play is adapted from a real case and was created after interviewing a large number of witnesses and participants in real transnational cases. The drama describes the story that criminal police, represented by Gao, formed an overseas action task force, carried out multinational law enforcement cooperation, fought with overseas criminal forces and finally cracked many transnational cases. As the saying goes, "the law is slow but not leaking", any form of illegal crime will be punished by law. No one, no group can use the loopholes in the law to escape the loopholes in the law!