In this instalment of our Making Of Documentary investigation of the creation of Gerry and Sylvia Anderson's classic television series Thunderbirds, we take an in-depth look at Scott's journey to the lost pyramid of Khamandides and his battle with the Zombites. With the help of newly unearthed 35mm film and studio documentation, this series challenges some of the "established" facts of the series' early days and uncover footage unseen for sixty years.