Yang Guang, deputy director of the Third Division of the Yanping National Security Bureau, was accidentally involved in a conspiracy involving an international spy organization during an operation. During the investigation, a woman named Zhao Yawei attracted Yang Guang's attention.Her identity and behavior are full of mystery and are closely related to the entire incident.

As the incident escalates, Yang Guang and Zhao Yawei, who seem to be different camps, are both involved in a complex vortex, and it is difficult to distinguish between the enemy and us. Faced with the trap carefully laid by the enemy, Yang Guang went deep into the tiger's den and launched a series of thrilling struggles with the hostile forces.