Code Orange

E1

A bound corpse emerges following a serial arson. The first responders to unite in the investigation.

Code B

E2

Two fires break out in different locations. The first responders find themselves in a crisis.

Code R98

E3

The first responders and the NFS cooperate to uncover clues to the serial arsonist.

Code Grey

E4

The arsonist's final plan gets revealed. Can Ho-gae save everyone from danger and catch the criminal?

Rapport Building

E5

When a murder occurs at Myeong-pil's villa, Ho-gae leaves his post and joins the case. Kang Do-ha joins the National Forensic Service.

Salami Tactics

E6

Do-ha concludes that the death at the villa was an accident, but Ho-gae continues his investigation. Do-ha uncovers the dark side of the neighbours.

Hot Zone

E7

An unidentified body is found after a brawl at a junkyard. A crisis arises during the autopsy.

Code Green

E8

Criminals plan to endanger the NFS building. Can the team safeguard the place?

Code Purple

E9

The police and fire department respond to an urgent call about a horrifying incident regarding organ extractions.

Trust Fall

E10

Ho-gae delves into the investigation of Ma Joong-do's murder and reopens a past murder case and prison escape.

Overkill

E11

Ho-gae vanishes after a caravan explosion. Amidst the chaos, a showdown is drawing near.

Dying Message

E12

Supported by the NFS, the first responders confront the sinister mastermind in a decisive showdown.