• Air date: 04 Aug '23 12 episodes
      Firefighters fighting fires, police catching criminals, and National Forensic Service finding evidences! The upgrade cooperation against unprecedented and never happen before cases begins!
  • List of Episodes (12)
    • 1. Code Orange

      04 Aug '23
      A bound corpse emerges following a serial arson. The first responders to unite in the investigation.
    • 2. Code B

      05 Aug '23
      Two fires break out in different locations. The first responders find themselves in a crisis.
    • 3. Code R98

      11 Aug '23
      The first responders and the NFS cooperate to uncover clues to the serial arsonist.
    • 4. Code Grey

      12 Aug '23
      The arsonist's final plan gets revealed. Can Ho-gae save everyone from danger and catch the criminal?
    • 5. Lapport Building

      18 Aug '23
      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.
    • 6. Salami Tactics

      19 Aug '23
      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.
    • 7. Hot Zone

      25 Aug '23
      An unidentified body is found after a brawl at a junkyard. A crisis arises during the autopsy.
    • 8. Code Green

      26 Aug '23
      Criminals plan to endanger the NFS building. Can the team safeguard the place?
    • 9. Code Purple

      01 Sep '23
      The police and fire department respond to an urgent call about a horrifying incident regarding organ extractions.
    • 10. Trust Fall

      02 Sep '23
      Ho-gae delves into the investigation of Ma Joong-do's murder and reopens a past murder case and prison escape.
    • 11. Overkill

      08 Sep '23
      Ho-gae vanishes after a caravan explosion. Amidst the chaos, a showdown is drawing near.
    • 12. Episode 12

      09 Sep '23