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Thunderbirds Wiki

"What an extraordinary man. He didn't even touch his tea!"
— Lady Penelope Creighton-Ward

"Brink of Disaster" is the twenty-second episode of Thunderbirds season 1, first broadcast on 24th February 1966.


A crooked investor called Warren Grafton tries to recruit Lady Penelope into aiding his scheme to build a cross-country monorail. When Penny informs Jeff, he investigates - but he, Brains, Tin-Tin and Grafton find themselves trapped onboard a fully-automated monorail train, speeding towards a stricken bridge.


Main article: Brink of Disaster/Storyline


Main article: Brink of Disaster/Transcript


Regular Characters[]

Guest Characters[]

Cameo Roles[]

International Rescue Equipment Used[]

Non-International Rescue Equipment Used[]



  • The monorail train in this episode uses the same model as the one in The Perils of Penelope. It was constructed by using pieces out of a Meccano bridge set.
  • Music from Stingray was heard in this episode.


Main article: Brink of Disaster/Goofs

Foreign Titles[]

  • French: Le monorail; Arrêtez le train
  • German: Am Rande des Unglücks
  • Spanish: Al Borde del Desastre
  • Italian: Una truffa ben organizzata
  • Dutch: De dodenrit (TV 1967); De laatste redding (TV 1991); Op het randje (VHS, DVD)
  • Dutch (Belgium): Op de rand van een ramp (TV 1975)
  • Portuguese: A Beira do Desastre
  • Japanese: 恐怖のモノレール