1. Appear

8

. 19 February 2021. 65 min

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.

2. Disappear

9

. 20 February 2021. 68 min

The discovery of an unidentified human skeleton raises unsettling possibilities. Dong-sik drags Kang Min-jeong back to town from a Seoul night club.

3. Smiled

0

. 26 February 2021. 63 min

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.

4. Cried

0

. 27 February 2021. 61 min

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.

5. The Deceit

9

. 5 March 2021. 64 min

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.

6. To Deceive

0

. 6 March 2021. 63 min

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.

7. The Text Messages

0

. 12 March 2021. 75 min

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.

8. The Arrest and Interrogation

0

. 13 March 2021. 71 min

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.

9. Bodies Found

0

. 19 March 2021. 61 min

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.

10. Interrogating the Chief

0

. 20 March 2021. 62 min

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.

11. Who Killed Sang-bae?

0

. 26 March 2021. 63 min

Committed to getting to the bottom of the latest murder, the team pulls together — and considers two of their own as prime suspects.

12. Jeong-je and the Deer

0

. 27 March 2021. 67 min

The truth behind the events from the night of Lee Yu-yeon's death begins to unravel. Jeong-je struggles to remember what happened.

13. The Next Commissioner General

9

. 2 April 2021. 62 min

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.

14. Setting the Trap

9

. 3 April 2021. 61 min

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.

15. Letting Go

9

. 9 April 2021. 61 min

After obtaining an astonishing audio recording, Ju-won resolves to pursue justice at any cost. Dong-sik and Ju-won question Lee Chang-jin.

16. Catch

10

. 10 April 2021. 79 min

In the aftermath of another sudden killing, Dong-sik joins hands with Ju-won to bring down the guilty — and deliver necessary punishment.