Character mistake: The situation in this episode is that a clerk, Lambert, is trapped inside a bank vault that is having the air removed. When IR arrives they focus all of their efforts on forcing a man-sized entrance before the air runs out, but don't consider first making a small hole to allow air in, thus giving them plenty of time to create an entrance afterwards.Voluble
Character mistake: The end of this episode concerns IR chasing down a copy of the photos the Hood taken of the Thunderbird vehicles. However, they show no concern for being photographed in person, as they're lounging around in casual clothes in the end, on an active film set with cameras everywhere, and no camera detector on their persons.Voluble
Factual error: The reactor controllers in both plants, and Brains, claim that cutting off the seawater intake would resolve the runaway reactor, and help bring it under control. In fact the opposite is the case - the plant's purpose is to purify and desalinate seawater by boiling, so processing more of it would soak up the excess heat the reaction is producing. Cutting off the intake would prevent adequate cooling, allowing the heat to build up and damage the plant further. We know the seawater isn't somehow used for fuel, because we see Scott and Virgil operating fuel rods in the reactor.Voluble
Continuity mistake: When The Hood drives his van off the broken bridge whilst escaping the police, watch carefully; the van bounces off the rocks on the other side and starts to fall roof-first into the river below. However, when it cuts to the van falling into the water it falls in upright. (00:42:00)
Continuity mistake: When Thunderbird 2 leaves the hangar on Tracy Island, it appears that Pod 3 has been selected (Pod 2 is visible to the right of Thunderbird 2), yet when Virgil and Brains arrive at Mount Arkan, the Transmitter Truck emerges from Pod 6. (The same continuity error also occurs in the episodes 'Vault of Death', 'Move - And You're Dead', 'Martian Invasion', 'The Perils Of Penelope' and 'Day of Disaster', probably due to the same footage being re-used for those episodes).
Factual error: An edition of the 'Melbourne Herald' newspaper can be seen in this episode, and appears to be dated Friday, December 24, 1964. Yet 'Thunderbirds' is supposed to be set in the 21st Century (2026 or 2065, depending on who you believe). This date is also seen on newspapers which appear in the episodes 'Edge of Impact', 'The Impostors' and 'Cry Wolf'. Also, to compound the error, December 24th, 1964 was actually a Thursday, not a Friday.
Continuity mistake: Near the end of the episode, Jeff activates Operation Cover-Up to change the wall-mounted pictures of the International Rescue members from the usual pictures of them in their uniforms to ones of them in casual clothing before a doctor who has just examined Kyrano enters the room. However, while he and Jeff are talking, a couple of shots of Scott and Gordon contain enough of the pictures to show that they have reverted back the ones of them in uniform. (00:48:35)
Continuity mistake: When the shaft that Virgil slides down connects to Thunderbird 2, we can see Pod 3 to the right of Thunderbird 2. Seconds after Virgil's chair has locked into place, we see the pods slide across from left to right, including Pod 3. I thought that was to the right of TB2? It couldn't have been quickly moved to the left, as we see that Pod transportation is very slow. It couldn't of been a spare, as there is no sign of it when we see Pod 1, etc, roll to the right.