• Air date: 14 Jun '23 8 episodes
      Jae-suk, Kwang-soo and Yu-ri are sent into the space for a mission. The three members must survive four hours in the unknown!
  • List of Episodes (8)
    • 1. Stress Zone

      14 Jun '23
      The first mission is to stay healthy. However, enemies are lurking around.
    • 2. Save Zone

      14 Jun '23
      The members enjoy a peaceful space of healing which soon turns into disaster.
    • 3. Automatic Zone

      14 Jun '23
      The members go on an adventure in a cosy AI bed. However, the machine goes haywire.
    • 4. Virus Zone II

      21 Jun '23
      An unidentified presence appears before the members who have returned as lifeguards.
    • 5. Mystery Zone

      28 Jun '23
      The members enter the lively Hwayang Village. However, mysterious events continue to follow them.
    • 6. Play Zone

      05 Jul '23
      A PLAY ZONE is created for the members who have been through a lot. A lot of memorable childhood games are gathered in a questionable area. If they cannot avoid it, they might as well enjoy it. The spin-chilling fun of holding out begins!
    • 7. Analog Zone

      12 Jul '23
      The members have to survive alone in an underground bunker with no forms of communication.
    • 8. Episode 8

      19 Jul '23