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Thunderbirds Wiki

"Extraction" is the 19th episode of Thunderbirds Are Go!. It is was broadcast on December 5th, 2015.


A seismologist and his son alert the authorities to the presence of a rogue wildcat mining operation, only for the machinery to trigger an earthquake that swallows the equipment – along with the father and son. Gordon must attempt a daring underground rescue of the boy and his injured father, while Virgil has to find a way to shut down the out-of-control rig.



Gordon: "You were right about the hydro-methane. It's everywhere."
Brains: "T-try not to ignite it. If it blows up..."
Gordon: "It will be like the fourth of July?"
Brains: "More like Doomsday."

Gordon: "Johnny, did you just bust a crime ring from orbit?"
John: "Well, Brains helped, and don't call me Johnny."

International Rescue Equipment Used

Non-International Rescue Equipment Used

  • Sonic Ejection Platform (Hydro-Methane extractor)



  • This episode is an homage to both Cry Wolf (child who idolizes International Rescue trapped underground) and Terror In New York City (people trapped underground after a cave-in with Thunderbird 4 being used to rescue them).
  • Dunsley Field is a direct reference to Dunsley Tracker, the base that Mr. Williams operated from, in the original episode Cry Wolf. In fact, the writer even used his last name for their characters.
  • Footage of Gordon piloting Thunderbird 4 through the underwater tunnels was previously used in Ring of Fire Part 1. New footage was also added using the same digital set.
  • The number "3" decals on Aiden's model of Thunderbird 3 are sideways, which reflect the livery of the original Thunderbird 3.


  • After Thunderbird 4 launches, Virgil heads back to the platform. The initial shot of Thunderbird 2 flying past at the cliff clearly shows it has its module in place. One might think that Virgil could have collected the unoccupied Module 4, but back at the platform, Thunderbird 2 clearly has an empty module bay, and remains so until the climax of the episode.

Foreign Titles

  • Dutch: Extractie
  • French: Extraction
  • Spanish: Extracción
  • Japanese: 小さな科学者 (A Small Scientist)
  • Arabic: معجب ثندربيردز الكبير (Big Thunderbirds fan)