A 60-minute documentary that explores the origins and making of the Key to Time season, and the entirety of Graham Williams' eventful three years as producer of Doctor Who. Featuring contributions from actors Tom Baker (the Doctor), Mary Tamm (Romana), Louise Jameson (Leela), Lalla Ward (Princess Astra/Romana), and John Leeson (K9), plus new series writer Gareth Roberts. Narrated by Toby Longworth.