The future has arrived at the Ashfordly police station in the form of the new sergeant George Miller and a state-of-the-art Ford Zephyr police car. He also has plans to close down the police house in Aidensfield and move PC Walker to Ashfordly permanently. Apart from that Sergeant Miller is very old-fashioned and extremely narrow-minded. His first case in charge of the Ashfordly police is a series of wage snatches. After yet another snatch PC Bellamy and the Zephyr's regular driver PC Yates give chase to two suspects in a Mini Cooper, but they are shaken off when the robbers go where the big police car cannot follow them, and only PC Walker on his motorcycle is able to keep up the pursuit, but crashes when the robbers block the road. The villagers of Aidensfield are not taking the possible loss of their police house lightly of course and organize a protest.

PC Walker arrests Ken Rawson for driving dangerously and violating just about any traffic regulation there is. Despite resisting arrest he accuses Walker of using excessive force. He also claims that he knows Sergeant Miller and that Miller soon will get him out. Christmas comes early to David when Enid Bakewell gives him her late husband's model railway. Lord Ashfordly is looking for a new housekeeper and Aunt Peggy thinks that is just the job for her. To be taken into consideration she needs a lot of references. Fabricated if necessary.