Continuity mistake: When we see the Professor unconscious by the cabinet in the caravan, there is a bottle of white formula next to him that changes position between shots.
Continuity mistake: When the Tracy family are sitting at the table eating their breakfast, there is a green cereal box on the table, but when Jeff says he is going back to the lounge to wait for Brains' call, the box has disappeared.
Continuity mistake: When Brains collapses under the Hood's influence, he has nothing in his left hand, but when the Hood takes off his mask, we see Brains again, and this time a blue stone has appeared in his hand.
Continuity mistake: When the Gray and Houseman Construction Company vehicle is moving along at the beginning of the episode, the launching pad is raised, but after a quick cut to the crew, we return to the vehicle and the pad is now lowered.
Continuity mistake: In several wide shots of Thunderbird 1 and Eddie's tractor on the cliff, the yellow pins that were fired from TB1 earlier and the rock they were holding have disappeared.
Continuity mistake: In the pyramid, we see a closeup of Scott's hand grabbing the gun. The color of his uniform changes for a lighter blue in that shot.
Continuity mistake: As Thunderbird 1 crashes in the desert, Scott is thrown forward and he bangs his chin on TB1's flight controls. But after TB1 has crashed, Scott is shown with his forehead on the controls.
Continuity mistake: When Jeff and Tin-Tin are discussing whether she should go on the mission with Virgil to rescue Scott, the pen on the map on Jeff's desk is facing upwards, but later on in the scene it has moved slightly to the right.
Continuity mistake: When Jeff tells Alan it's time to relieve John in the space station, he's holding a cigar in his right hand, but after a quick cut to Alan saying "All set, father," we return to Jeff, and his cigar has suddenly disappeared.
Continuity mistake: When Tin-Tin and Gordon are swimming in the pool at Tracy Island, the beach ball in the pool has nothing on it, but in the next shot when we see Virgil sitting down reading, the ball is thrown out of the pool and there are green stars on it.
Continuity mistake: When Scott is travelling to the pyramid in Thunderbird 1, his International Rescue hat keeps disappearing and reappearing between shots.
Continuity mistake: When Wilson asks Lindsey in the jeep "Which way do you want to go?" you can see he is wearing his headphones, but after cutting to Lindsey, we return to Wilson and his headphones have disappeared.
Continuity mistake: The long shots of Scott hanging out of the window/hatch of Thunderbird 1 as Wilson and Lindsey find him, shows white lettering around the window, but the close-ups show no white around the window at all.
Continuity mistake: At the beginning of the episode, we see Thunderbird 1 and there is only one "TB1" logo on the rocket. But when the Zombites craft start attacking Thunderbird 1, there are two "TB1" logos.
Continuity mistake: Before going on board Thunderbird 3, Alan is wearing a brown suit and Scott is wearing a yellow suit and orange shirt. But when Alan goes up the elevator in Thunderbird 3, his clothes have changed to a green checked shirt and beige trousers, and when Scott returns to Tracy Island, his clothes have changed to a blue roll-neck and checked jacket.
Continuity mistake: Alan and Scott launched Thunderbird 3 to go to Thunderbird 5 and relieve John from his duties in the space station. You can see John leaving Thunderbird 5 to go with Scott to Thunderbird 3, but when Scott returns to Tracy Island, John is nowhere to be seen.
Continuity mistake: After Thunderbird 1 is shot down in the Sahara, Scott is hanging unconscious out of the craft's front door. When Scott and Lindsey spot Thunderbird 1, the door to the craft is closed.
Continuity mistake: When Alan, Tin-Tin and Scott are lowered while on the settee to enter Thunderbird 3, looking head-on at them we have the three of them sat in that order from left to right as they descend the shaft. However, when it cuts to the long shot, Alan and Scott have magically swapped places. When they are fully raised into Thunderbird 3, Alan and Scott are back in their original positions on the settee. (00:18:50)
Continuity mistake: When Virgil radios to Jeff that he is about to land on Mount Arkon, Jeff asks him what the weather's like, to which Virgil replies: "Pretty stormy, Father. Pretty stormy." Then we cut to an exterior of the airborne Thunderbird 2, which is absolutely covered in snow. Just moments later we get a long shot and suddenly Thunderbird 2 is no longer covered in snow. We then get a close-up of the cockpit view, where we see Virgil and Brains, and Thunderbird 2 is covered in snow again. We soon get another couple of shots where it alternates between Thunderbird 2 not snow-covered and then being covered in snow again. (00:28:00)
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).
