"Deep Water" is the tenth episode of Thunderbirds Are Go! season 3. It was broadcast on May 18, 2019, in the United Kingdom.
Plot[]
When two scientists notice acidic waters are bleaching the Supreme Barrier Reef, Gordon launches in Thunderbird 4 to discover the cause. Under the water, he finds a sunken cargo ship containing dangerous acidic materials - which could pose a threat to the entire ocean.
Cast[]
Regular Cast[]
Guest Cast[]
- Helen Shelby - Jennifer Saunders
- Robby Shelby - Marcel McCalla
Quotes[]
Gordon: "International Gordon, Rescue here!"
Gordon: "Okay, I'm gearing up! And the crowd goes wild..."
Parker: "Once again, it's International Rescue's secret weapon Parker to the rescue..."
International Rescue Equipment Used[]
- Thunderbird 4
- FAB 1 (Cameo)
Gallery[]
Trivia[]
- This is the first season 3 episode to be written by Len Uhley, and his final contribution to the series.
- This episode contains two firsts for Gordon; first solo launch sequence and first time Gordon has appeared without other members of his family.
- When Gordon activates the hand scanner, a riff from The March of The Thunderbirds by Barry Gray can be heard.
- This episode continues from Rigged for Disaster, as Lady Penelope expressed desires to convert the derelict oil rig.

Stingray
- A model of Stingray from the eponymous TV series appears during Gordon's launch sequence.