Although Do Chang and Mr. So prepare for the retrial of Lee Dae Chul’s case, Do Chang still needs to persuade Dae Chul to follow his lead because he is reluctant to take part in it due to the possibility of harm that it may cause his daughter. Meanwhile, Do Chang finds himself caught in a dilemma that is inflicting harm to both the victims who lost their beloved partners and the ones who crossed the line for their greed.

Do Chang gets reinstated and returns to Violent Crimes Unit Two after coming to an agreement with Superintendent Moon. The team then focuses on Park Gun Ho’s case and stumbles upon Jo Seong Dae’s bloodstain at the murder site. This leads to the revelation of Chief Nam's wrongdoing as well as a possible connection to Oh Jong Tae. Just before closing in on Jo Seong Dae, the team catches the sight of the one behind the corruption.

Jin Seo Gyeong hosts a secret meeting with Yoo Jeong Seok and Kim Gi Tae at Gawol Church, demanding them the truth regarding a missing person named Jo Seong Gi. In the meantime, Do Chang and Ji Hyuk successfully locate the missing dead body from five years ago. Despite the evidence against their favor, Oh Jong Tae and Nam Guk Hyun cook up a loophole to clear the charges.

Yoo Jeong Seok admits to his doings before his junior reporters and leaves the office, ordering them to stay put until his next instruction. While being threatened by Oh Jong Tae, Nam Guk Hyun offers video footage of Jeong Seok’s murders. On the verge of being exposed, Jeong Seok willingly suggests the police that he would confess in his unique manner. The confession is officially published.

The shocking death of Yoo Jeong Seok stirs up the public, and the case is now under a spotlight. As the prosecutor makes a confession to his previous wrongdoing out of conscience, Oh Jong Tae gets sentenced to a lifetime in prison. However, Ji Hyuk’s gut feeling tingles down his back, and he starts searching for something. Something that might just reveal the truth behind the death of a fellow detective, Jang Joon Gi.