A powerful underwater seaquake turns a busy day for International Rescue into a perilous one. Gordon's mission is to rescue a research team trapped in an undersea lab, but in doing so he discovers a chain of seismic destabilisers positioned along the bottom of the ocean floor. Lady Penelope is contacted to help the Thunderbirds find the person responsible. Written by
Did You Know?
The design of the nose of the undersea research station is identical to the nose of the "Eagle" spaceships used in another Gerry Anderson series, "Space 1999" See more
While Kayo is talking to Alan in TB3 at the beginning, she laments that she doesn't have a ship of her own, yet her ship (which is not revealed to her until the end of Part 2 by Brains) appears on the International Rescue patch on the right arm of her uniform. See more
[Virgil hides under a desk, only to find Gordon already there
How long have you been under here?
From the second I sensed Grandma was looking for a test-subject. Still recovering from the last family meal!
Dad's desk? I guess in a way he's still looking out for us.
Hey you two! Get out from under there and taste this!
He always did take her side!
References Space: 1999
Thunderbirds Are Go Theme
Written by Barry Gray See more