In this penultimate episode, we're having a right hoot on set with owls, ducks and horses. We experience unexpected biting creatures in the forest. Steff's on work experience in the script department and meets production designer Phil Sims.

Twenty years ago, Doctor Who began filming in Wales. This fun and insightful documentary gives inside secrets from the cast, crew and writers, past and present, including Ncuti Gatwa, David Tennant, Jodie Whittaker, Billie Piper, Karen Gillan and more.