16 episodes · first aired 2021-02-19
| Still | # | Title | Overview | Air date | Rating |
|---|---|---|---|---|---|
 | 01 | Appear 2021-02-19 | When young hotshot Han Ju-won arrives in town, he's assigned to partner with Lee Dong-sik, a maverick cop with a gruesome tragedy in his past. | 2021-02-19 | 8.0 |
 |
Ratings shown are community scores. Once OMDB is wired, these become per-episode IMDB values.
| 02 |
Disappear 2021-02-20 |
The discovery of an unidentified human skeleton raises unsettling possibilities. Dong-sik drags Kang Min-jeong back to town from a Seoul night club. |
| 2021-02-20 |
| 8.5 |
 | 03 | Smiled 2021-02-26 | Ju-won's suspicions about Dong-sik's involvement in the case intensify. The emergence of a mysterious cellphone places Ju-won in a tight spot. | 2021-02-26 | 8.0 |
 | 04 | Cried 2021-02-27 | Coming up empty with Dong-sik's interrogation, the police root around Yoo Jae-i's butcher shop. Ju-won makes an explosive statement to the public. | 2021-02-27 | 8.0 |
 | 05 | The Deceit 2021-03-05 | A fight breaks out as Dong-sik prevents Kang Jin-muk from being taken advantage of. Oh Ji-hun is confronted about the night of the disappearance. | 2021-03-05 | 8.5 |
 | 06 | To Deceive 2021-03-06 | Ju-won agrees to Jin-muk's request to carry out his own unofficial investigation. Do Hae-won moves to put an end to the case and protect her son. | 2021-03-06 | 8.0 |
 | 07 | The Text Messages 2021-03-12 | Park Jeong-je does the right thing. The arrival of a second text from Min-jeong points Dong-sik toward someone who's figured out the truth. | 2021-03-12 | 9.0 |
 | 08 | The Arrest and Interrogation 2021-03-13 | News of the killer's arrest scandalizes the town. The killer refuses to speak to anyone but Dong-sik and Ju-won. Their interrogation hits a nerve. | 2021-03-13 | 8.0 |
 | 09 | Bodies Found 2021-03-19 | Following a clue from an old video, Dong-sik searches desperately for his sister's remains. Ju-won and Jae-i each return after three months away. | 2021-03-19 | 8.0 |
 | 10 | Interrogating the Chief 2021-03-20 | Seeing CCTV footage, Dong-sik is convinced he's figured out the real culprit behind the killer's death. Ju-won puts a GPS tracker on Nam Sang-bae. | 2021-03-20 | 9.0 |
 | 11 | Who Killed Sang-bae? 2021-03-26 | Committed to getting to the bottom of the latest murder, the team pulls together — and considers two of their own as prime suspects. | 2021-03-26 | 0.0 |
 | 12 | Jeong-je and the Deer 2021-03-27 | The truth behind the events from the night of Lee Yu-yeon's death begins to unravel. Jeong-je struggles to remember what happened. | 2021-03-27 | 8.0 |
 | 13 | The Next Commissioner General 2021-04-02 | As detectives begin to connect the dots, Han Ki-hwan's ties to the case become clearer. Dong-sik asks Ju-won if he can trust him. | 2021-04-02 | 9.0 |
 | 14 | Setting the Trap 2021-04-03 | Dong-sik listens in on a conversation that brings to light many long-held secrets. A determined Ju-won sets out to uncover further truths. | 2021-04-03 | 9.0 |
 | 15 | Letting Go 2021-04-09 | After obtaining an astonishing audio recording, Ju-won resolves to pursue justice at any cost. Dong-sik and Ju-won question Lee Chang-jin. | 2021-04-09 | 9.0 |
 | 16 | Catch 2021-04-10 | In the aftermath of another sudden killing, Dong-sik joins hands with Ju-won to bring down the guilty — and deliver necessary punishment. | 2021-04-10 | 9.5 |
