Seasons & Episodes
Code ZERO
On his first day, Detective Jin Ho-gae works jointly with firefighters to resolve a kidnapping case.
Code TWO
The first responders try to stop a suicide attempt, but the case turns out to be more complicated.
Code YELLOW
Ho-gae's house is said to be haunted. He and Do-jin try to solve the mystery that lies in the ashes.
Code V30
A driver is arrested after a hit-and-run accident of a child. A shocking truth awaits.
Code BLACK
Ho-gae starts an undercover operation. He must stop a crisis that may result in mass casualties.
Code RED
An unidentified body is found at the scene of a fire. An unlikely person is held as a suspect.
Code BLUE
Ho-gae identifies a new suspect, while the case becomes evermore ensnared in mystery.
Code CLEAR
Ho-gae reinvestigates a murder case and gets help from Song Seol and Yoon Hong.
Code PINK
Firefighters rush to save a teenage girl attempting suicide. Police find a body of a newborn baby.
Code AMBER
The first responders search for the father of the stillborn child. They then meet a strange patient.
Code ONE
Ho-gae misses Hyun-seo by a second. He and Seol pursue the evasive kidnapper.
Code F63.1
A series of fire incidents occur. Do-jin suspects a chain arson and goes to see Ho-gae.
Code ORANGE
A bound corpse emerges following a serial arson. The first responders to unite in the investigation.
Code B
Two fires break out in different locations. The first responders find themselves in a crisis.
Code R98
The first responders and the NFS cooperate to uncover clues to the serial arsonist.
Code GREY
The arsonist's final plan gets revealed. Can Ho-gae save everyone from danger and catch the criminal?
Rapport Building
When a murder occurs at Myeong-pil's villa, Ho-gae leaves his post and joins the case. Kang Do-ha joins the National For
Salami Tactics
Do-ha concludes that the death at the villa was an accident, but Ho-gae continues his investigation. Do-ha uncovers the
Hot Zone
An unidentified body is found after a brawl at a junkyard. A crisis arises during the autopsy.
Code GREEN
Criminals plan to endanger the NFS building. Can the team safeguard the place?
Code PURPLE
The police and fire department respond to an urgent call about a horrifying incident regarding organ extractions.
Trust Fall
Ho-gae delves into the investigation of Ma Joong-do's murder and reopens a past murder case and prison escape.
Overkill
Ho-gae vanishes after a caravan explosion. Amidst the chaos, a showdown is drawing near.
Dying Message
Supported by the NFS, the first responders confront the sinister mastermind in a decisive showdown.
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