Question: How does Spectrum recover its wrecked SPVs?
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: This episode features flashback footage from "Big Ben Strikes Again", "Crater 101", "The Trap" and only eleven minutes of new material. The flashback to "Crater 101" also features a flashback of its own.