In part three – "Designing The Future" – we take a look at the genesis behind the sets, models, and costumes of Thunderbirds as the AP Films crew readied themselves for production of "Trapped in the Sky". From the futuristic fashions of Lady Penelope, to the sleek sophistication of the Tracy Lounge, to the breathtaking ingenuity of Thunderbird 2, the look of Thunderbirds is intrinsic to the long lasting affection for the show.