Starring: David Graham, Ray Barrett, Peter Dyneley, Shane Rimmer
Audio problem: As John and Gordon are fitting the new component on Thunderbird 5, John says, "It looks like we'll be another two hours before we're back in business. In the meantime, International Rescue is non-operational." But he is voiced by David Graham, not Ray Barrett.
Audio problem: When Professor Marshall says "Detonate", her lips don't move.
Revealing mistake: When the dummy plane is shot out of the sky by the fighter pilot, a piece of the plane shoots off into the top left of the screen and bounces off the sky background. (00:23:05)
Terror in New York City - S1-E4
Trivia: When Thunderbird 1 touches down to land in New York City, look at the centre of the screen and you can see a brown building with a giant Swastika on it.