The Suspect, Lee Hyun

The murder suspect, Yang Seung-hoon, leaves on the first available plane to China. Lee Hyun illegally uses Cha Ji-an’s computer and informs the Chinese authorities of his drug trafficking. They find evidence at his house and arrest him on arrival. Team Leader Kang Eun-hyuk and Planning Officer Hyun Ji-soo are reprimanded by the Deputy Chief for mishandling the case. Cha Ji-an is transferred to another department. Detective Yang sets up a meeting with Lee Hyun to relay some pertinent information concerning Joon-ho. Detective Yang is murdered, and he becomes the prime suspect.

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S01E05 - Borne Back Ceaselessly into the Past