Season 1
16 episodes · first aired 2016-01-22
| Still | # | Title | Overview | Air date | Rating |
|---|---|---|---|---|---|
 | 01 | You're Doomed 2016-01-22 | Profiler Park Hae-young hears a man calling his name through a discarded two-way radio. The voice starts talking about an unsolved crime. | 2016-01-22 | 8.4 |
 | 02 | We Still Have a Chance 2016-01-23 | The statute of limitations is lifted after the suspect's arrest. Hae-young joins Soo-hyun's team for the newly established cold case squad. | 2016-01-23 | 8.2 |
 | 03 | We Can Prevent the Killings 2016-01-29 | Reality changes after Hae-young exchanges information with Jae-han. Hae-young tries to work together with Jae-han in 1989 to prevent the next murder. | 2016-01-29 | 8.0 |
 | 04 | We Found the Killer 2016-01-30 | The ninth victim is Won-kyung, the woman Jae-han loves. A driver turns himself in, but Soo-hyun and Jae-han determine that his son is the real killer. | 2016-01-30 | 8.0 |
 | 05 | Changing the Past Alters the Present 2016-02-05 | Hae-young starts to investigate Jae-han's disappearance. Jae-han's former colleagues get suspicious about seeing Hae-young digging into the past. | 2016-02-05 | 7.5 |
 | 06 | Catch Him by All Means 2016-02-06 | Seeking vengeance for the events that lead to the death of his daughter, Kyung-tae commits a kidnapping after getting out of prison for burglary. | 2016-02-06 | 8.0 |
 | 07 | We Must Dig Deeper 2016-02-12 | Jae-han arrests Se-kyu for the serial burglary case, but the culprit is freed after serving a short sentence; Kyung-tae still commits murder. | 2016-02-12 | 7.8 |
 | 08 | How Are You Alive? 2016-02-13 | Soo-hyun and Hae-young notice a connection between the burglary case and Da-hye, the woman who killed herself twenty years ago. | 2016-02-13 | 8.6 |
 | 09 | Hongwon-dong Case 2016-02-19 | Hae-young learns that Chi-soo and Jae-han met in 1999 during a case in Inju. After serving time for the crime, Hae-young's brother had killed himself. | 2016-02-19 | 8.4 |
 | 10 | Someone Has to Stop the Bad Guys 2016-02-20 | The bodies discovered in the mountains appear to be more victims of the 1997 serial murder case. Jae-han learns that Soo-hyun became team leader. | 2016-02-20 | 7.8 |
 | 11 | The One Last Case 2016-02-26 | Hae-young and Soo-hyun arrest Jin-woo after coming to the conclusion that he is the killer. Hae-young asks Jae-han about the Inju rape case. | 2016-02-26 | 7.8 |
 | 12 | The Case Was Manipulated 2016-02-27 | Hae-young becomes a suspect for the murder of Chi-soo. Jae-han realizes who the principle offender of the attack on Hye-seung is. | 2016-02-27 | 8.2 |
 | 13 | The Real Assailant 2016-03-04 | Soo-hyun and the others mourn after confirming that the remains belong to Jae-han. Hae-young learns that Jae-han used to look after him in the past. | 2016-03-04 | 8.0 |
 | 14 | Not Now, but Maybe in the Past 2016-03-05 | Hae-young realizes the possibility that his brother could have been murdered after learning from Hye-seung that Sun-woo was not guilty. | 2016-03-05 | 8.0 |
 | 15 | Is It Really You? 2016-03-11 | Hae-young is arrested for the murder of Chi-soo. Soo-hyun hears Jae-han apologizing over the radio for not being able to prevent Sun-woo's death. | 2016-03-11 | 8.0 |
 | 16 | If You Don't Give Up 2016-03-12 | Hae-young is in critical condition after being shot while meeting with Sung-bum. In 2000, Jae-han has been captured by Bum-joo. | 2016-03-12 | 8.4 |
Ratings shown are community scores. Once OMDB is wired, these become per-episode IMDB values.