1. Code ZERO

9.667

. 12 November 2022. 65 min

On his first day, Detective Jin Ho-gae works jointly with firefighters to resolve a kidnapping case.

2. Code TWO

9

. 18 November 2022. 70 min

The first responders try to stop a suicide attempt, but the case turns out to be more complicated.

3. Code YELLOW

9

. 19 November 2022. 64 min

Ho-gae's house is said to be haunted. He and Do-jin try to solve the mystery that lies in the ashes.

4. Code V30

9.667

. 25 November 2022. 63 min

A driver is arrested after a hit-and-run accident of a child. A shocking truth awaits.

5. Code BLACK

9

. 26 November 2022. 70 min

Ho-gae starts an undercover operation. He must stop a crisis that may result in mass casualties.

6. Code RED

8.667

. 2 December 2022. 60 min

An unidentified body is found at the scene of a fire. An unlikely person is held as a suspect.

7. Code BLUE

9

. 3 December 2022. 68 min

Ho-gae identifies a new suspect, while the case becomes evermore ensnared in mystery.

8. Code CLEAR

9.667

. 9 December 2022. 71 min

Ho-gae reinvestigates a murder case and gets help from Song Seol and Yoon Hong.

9. Code PINK

9.333

. 10 December 2022. 62 min

Firefighters rush to save a teenage girl attempting suicide. Police find a body of a newborn baby.

10. Code AMBER

9.667

. 16 December 2022. 63 min

The first responders search for the father of the stillborn child. They then meet a strange patient.

11. Code ONE

9.333

. 17 December 2022. 66 min

Ho-gae misses Hyun-seo by a second. He and Seol pursue the evasive kidnapper.

12. Code F63.1

9.667

. 30 December 2022. 67 min

A series of fire incidents occur. Do-jin suspects a chain arson and goes to see Ho-gae.