Release calendarTop 250 moviesMost popular moviesBrowse movies by genreTop box officeShowtimes & ticketsMovie newsIndia movie spotlight
    What's on TV & streamingTop 250 TV showsMost popular TV showsBrowse TV shows by genreTV news
    What to watchLatest trailersIMDb OriginalsIMDb PicksIMDb SpotlightFamily entertainment guideIMDb Podcasts
    OscarsHoliday Watch GuideGotham AwardsSTARmeter AwardsAwards CentralFestival CentralAll events
    Born todayMost popular celebsCelebrity news
    Help centerContributor zonePolls
For industry professionals
  • Language
  • Fully supported
  • English (United States)
    Partially supported
  • Français (Canada)
  • Français (France)
  • Deutsch (Deutschland)
  • हिंदी (भारत)
  • Italiano (Italia)
  • Português (Brasil)
  • Español (España)
  • Español (México)
Watchlist
Sign in
  • Fully supported
  • English (United States)
    Partially supported
  • Français (Canada)
  • Français (France)
  • Deutsch (Deutschland)
  • हिंदी (भारत)
  • Italiano (Italia)
  • Português (Brasil)
  • Español (España)
  • Español (México)
Use app
Physical: Asia
S1.E11
All episodesAll
  • Cast & crew
  • User reviews
IMDbPro

Impenetrable Fortress

  • Episode aired Nov 18, 2025
  • TV-MA
IMDb RATING
7.4/10
109
YOUR RATING
Impenetrable Fortress (2025)
KoreanGame ShowReality TV

Teams give their all in a grueling test of stamina and tactics. As daunting challenges push them to the limit, who will endure and make it to the end?Teams give their all in a grueling test of stamina and tactics. As daunting challenges push them to the limit, who will endure and make it to the end?Teams give their all in a grueling test of stamina and tactics. As daunting challenges push them to the limit, who will endure and make it to the end?

  • Stars
    • Yushin Okami
    • Kim Dong-hyun
    • Kim Min Jae
  • See production info at IMDbPro
  • IMDb RATING
    7.4/10
    109
    YOUR RATING
    • Stars
      • Yushin Okami
      • Kim Dong-hyun
      • Kim Min Jae
    • 3User reviews
  • See production info at IMDbPro
  • See production info at IMDbPro
  • Photos

    Top Cast18

    Edit
    Yushin Okami
    • Self - Contestant
    Kim Dong-hyun
    • Self - Contestant
    Kim Min Jae
    • Self - Contestant
    Sung-Bin Yun
    Sung-Bin Yun
    • Self - Contestant
    Amotti
    • Self - Contestant
    Eun-Sil Jang
    • Self - Contestant
    Choi Seung Yeon
    • Self - Contestant
    Yoshio Itoi
    • Self - Contestant
    Katsumi Nakamura
    • Self - Contestant
    Soichi Hashimoto
    • Self - Contestant
    Nonoka Ozaki
    • Self - Contestant
    Kana Watanabe
    • Self - Contestant
    Orkhonbayar Bayarsaikhan
    • Self - Contestant
    Dulguun Enkhbat
    • Self - Contestant
    Lkhagva-Ochir Erdene-Ochir
    • Self - Contestant
    Enkh-Orgil
    • Self - Contestant
    Khandsuren Gantogtokh
    • Self - Contestant
    Adiyasuren Amarsaikhan
    • Self - Contestant
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews3

    7.4109
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10

    Featured reviews

    1antobma

    RIGGED!

    I was so hyped for the 5 Quest, but it left me totally dissatisfied. I had a feeling the show will turn this way, but hoped until the very last minute that I will be wrong. Guess not. There's no way the Korean team lifted the door so early. Also for Japan they should have redone the game, since it was obviously a tehnical issue. So disappointing . Keep it Physical 100 if y'all are gonna win anyway.
    1ErickO-872

    Scripted Reality Show

    I mean bro, why always korea got benefit from this reality show? Australia left this competition earlier, and now japan has to be eliminated because they can not close the gate. I mean bro, japan isn't that weak. I think this reality show has been scripted and their staffs really want japan to be eliminated. Bro for real? I mean Korea > Australia? Huh let Eddie toss amotti to the air with his little finger then you know how strong Australia is. Tch......
    1mdonickislam

    Scripted Show

    Since the beginning, they plotted this show for Korea. From shipwreckage, battle ropes, treadmills to fortress task all was fixed. If you have ever picked heavy weights in the gym, you will understand how the Korean team picked 50-kilo boxes, how they rolled, which was not normal, and how other teams handled boxes. In the rope battle, Australia clearly won, but they let Japan win because Japan was an easier opponent for them. How on earth did only the Korean team know that the next task would be tougher, so they used female members for the rope battle? The second task could be easier, right? In the last task (Impenetrable Fortress) how they were tossing 50-kilo boxes & handling heavy wooden logs was quite laughable. My question is, if they wanted Korea to win the show, why did they bring all of the strong teams? They could bring 16 weak countries team & can show themselves as a mighty Korea which would be much easier for them. Anyway, next time they might think about that. Congratulations to the Korean team for winning a rigged show, and pity on the Australian and Mongolian teams for working hard on this show !!!

    Related interests

    Choi Min-sik in Oldboy (2003)
    Korean
    Bill Barretta and Pat Sajak in Wheel of Fortune (1983)
    Game Show
    Kim Kardashian in The Kardashians (2022)
    Reality TV

    Storyline

    Edit

    Top picks

    Sign in to rate and Watchlist for personalized recommendations
    Sign in

    Details

    Edit
    • Release date
      • November 18, 2025 (United States)
    • Country of origin
      • South Korea
    • Language
      • Korean
    • Production company
      • Teo
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Color
      • Color
    • Sound mix
      • Dolby Digital
    • Aspect ratio
      • 2.00 : 1

    Contribute to this page

    Suggest an edit or add missing content
    • Learn more about contributing
    Edit page

    More to explore

    Recently viewed

    Please enable browser cookies to use this feature. Learn more.
    Get the IMDb App
    Sign in for more accessSign in for more access
    Follow IMDb on social
    Get the IMDb App
    For Android and iOS
    Get the IMDb App
    • Help
    • Site Index
    • IMDbPro
    • Box Office Mojo
    • License IMDb Data
    • Press Room
    • Advertising
    • Jobs
    • Conditions of Use
    • Privacy Policy
    • Your Ads Privacy Choices
    IMDb, an Amazon company

    © 1990-2025 by IMDb.com, Inc.