If I was to tell you there was a Thunderbirds episode all about an old woman with a gambling addiction who decides to rent out a portrait to a New York businessman, and ends up being kidnapped and trapped under a burning building – you probably wouldn’t believe me. If I was to then tell you that in my opinion, it’s one of the best episodes of the entire series you would probably never listen to anything I said ever again. Well you can do that if you like, because The Duchess Assignment is a real episode of Thunderbirds and it is certainly up there as one of my favourites. In my opinion there is just so much that The Duchess Assignment does right to pull off this unconventional story. It has the right amount of comedy, a great rescue, and just about every aspect of the production is extremely well done.