Brains and Lady Penelope find themselves involved in a rescue mission when the Arlington Bridge collapses, trapping the Mars Probe rocket in the river bed.



(teleplay by)

Watch Now

From $1.99 (SD) on Amazon Video



Episode complete credited cast:
Sylvia Anderson ...
John Tracy / Allington Bridge Controller / Kirby / Dr R. G. Korda (voice)
Jeff Tracy / Professor Wingrove / NTBS Reporter / Crane Chief (voice)
Gordon Tracy / Aloysius Parker / Brains / Dave Clayton / Frank / Chuck / Policeman (voice)
David Holliday ...
Virgil Tracy (voice)
Scott Tracy (voice)
Matt Zimmerman ...
Alan Tracy / Bill Craddock / 2nd NTBS Reporter (voice)

Comic-Con 2017: All Aboard the IMDboat


July 20 to 23, 2017

Get entertainment news, trailer drops, and photos with IMDb's coverage of 2017 San Diego Comic-Con featuring host and IMDboat captain Kevin Smith. Watch our exclusive celebrity interviews, and tune in to our LIVE show from 3:30 to 5 p.m. PDT on Saturday, July 22.

Browse Our Guide to Comic-Con



Brains and Lady Penelope find themselves involved in a rescue mission when the Arlington Bridge collapses, trapping the Mars Probe rocket in the river bed.

Plot Summary | Add Synopsis


TV-G | See all certifications »




Release Date:

4 November 1965 (UK)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:

(Westrex Recording System)


Aspect Ratio:

1.33 : 1
See  »

Did You Know?


The music accompanying the journey of the Martian Space Probe in the episode "Day of Disaster" is entitled "The March of the Oysters". Originally composed by Barry Gray for the Stingray (1964) episode "Secret of the Giant Oyster", the piece is also heard in "30 Minutes After Noon", "The Impostors" and "The Cham-Cham". See more »


When Thunderbird 2 is selecting the pod, it is clear that Pod 4 is being selected. When we see Thunderbird 2 moving out of the hanger Pod 2 is next to it indicating Pod 3 had been chosen. This goof is also seen in the episodes "Sun Probe", "Vault of Death", "Move - And You're Dead", "Martian Invasion" and "The Perils of Penelope". This is because footage of the TB2 launch from the first episode ("Trapped In The Sky") has been used in the abovementioned episodes. See more »


[the two Allington Bridge controllers witness Brains talking into his watch]
Allington Bridge Controller: He's still at it, poor fellow. Seems to be under some delusion that he's in charge of the rescue.
Dave Clayton: We're desperate enough, even to listen to him!
Allington Bridge Controller: Yes, but he's just suggested they should fire missiles!
See more »


Featured in Thunderbirds: Security Hazard (1966) See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Preposterous as usual, but brilliant
20 August 2010 | by (United Kingdom) – See all my reviews

So, if you were in the business of launching Rockets. would you ever consider;

1. Building the rocket some miles from where you were going to launch it 2. Transporting it on the back of a lorry over a bridge 3. Using a bridge you've never tested 4. Fuelling the rocket before tilting it on its side on a lorry 5. Sticking two workers inside the rocket for the ride.

No? Forget it then, you're no good for Thunderbirds. If you can suspend belief for an hour though, switch this one on and get taken along for the ride. Nothing better on a Sunday morning before lunch or Sunday afternoon after the pub, when it'll all make a lot more sense!

1 of 1 people found this review helpful.  Was this review helpful to you?

Contribute to This Page

Create a character page for: