E1 - Code ZERO

Aired: November 12, 2022

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

E2 - Code TWO

Aired: November 18, 2022

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

E3 - Code YELLOW

Aired: November 19, 2022

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

E4 - Code V30

Aired: November 25, 2022

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

E5 - Code BLACK

Aired: November 26, 2022

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

E6 - Code RED

Aired: December 02, 2022

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

E7 - Code BLUE

Aired: December 03, 2022

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

E8 - Code CLEAR

Aired: December 09, 2022

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

E9 - Code PINK

Aired: December 10, 2022

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

E10 - Code AMBER

Aired: December 16, 2022

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

E11 - Code ONE

Aired: December 17, 2022

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

E12 - Code F63.1

Aired: December 30, 2022

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