After the operation failed, Gu Zhao, the youngest female field officer in the team, was transferred to logistics. During a cross-city tracking, she used details ignored by everyone to identify the suspect, and discovered that the failure was no accident. She started over from a marginal position, specializing in tracking, observation and counter-reconnaissance, and pieced together huge conspiracies against the action team in one case after another.
What she has to do is not to prove herself, but to protect everyone who deserves to be protected.