Taek-rok has conflicts with his team leader Yeon Ju-hyun. Seong-a struggles in a juvenile theft probe.

Seong-a gets injured, and Taek-rok tries to uncover the truth. Meanwhile, Gyeong-chan doubts Taek-rok.

Taek-rok finally executes his plan to bring down Lee Young-ho. Odd cooperation with Ju-hyun ensues.

Taek-rok tries to secure the testimony of Team Leader Han, the only witness to capture Lee Young-ho.

An unknown armed force appears. The election draws near, and Lee Young-ho attacks Do-hyung.

Ju-hyun suffers a severe injury while Taek-rok faces a crisis. The identity of their foes is unveiled.

Taek-rok confronts his past that he had been shunning. Ju-hyun takes a daring step to find the truth.

Veteran detective Taek-rok heads to the final battle. The die is cast, and there is no turning back.