Continuity mistake: At the very end of the episode, where Captain Scarlet, Captain Blue and Lieutenant Green are about to enter the airlock, their recognition badges are gone. Once they are inside the XK3 rocket, the badges have returned.
Continuity mistake: When Colonel White is being lowered onto the submarine, you can see that the harness is around his chest with his arms outstretched, but as he comes down the last few feet, he is gripping the harness strap with his hands.
Audio problem: After Colonel White thanks Captain Scarlet and Captain Blue at the start of the episodes, they reply with each other's voices.
Trivia: When the Captain Scarlet series was sold to TV broadcasters, ITC (who had backed and then marketed the series) issued a "recommended broadcast order". This was not always the same order as the episodes had been made. Episodes 1 to 4 were made and broadcast "in sequence", but from episode 5 this no longer applied. Episode 11 ("Avalanche") was the 5th to be broadcast, swapping places with the episode "Point 783" which was the 5th to be made, but the 11th to be broadcast.
Question: How does Spectrum recover its wrecked SPVs?