Extraction is an episode of Thomas' Adventures of Thunderbirds Are Go ( 2015 TV Series).
Seismologist Robert Williams and his son Aidan alert the authorities to the presence of a rogue hydromethane mining vehicle, only for the machinery to trigger an earthquake that swallows both them and the equipment. Gordon and Percy must attempt a daring underground rescue of the boy and his injured father while Virgil, Emily, and Toby must find a way to shut down the out-of-control rig.
[A HILLY AREA. Thunderbird 3 is shown]
[Over the hill, Aidan sees a hydromethane extractor.]
Aidan: What is that?
Robert Williams: I don't know.