Guy Foxton publishes and sells guide books. Unfortunately one of his guided tours crosses the private lands of Les Parnaby. When the police cannot do anything Parnaby decides to take care of the matter himself. It is not the first time Foxton has had a dispute about the right-of-way and PC Bradley kindly suggests that he removes the route from his guide and does not use it anymore, but Foxton is not forthcoming at all. David's and Vernon Scripps' lorry breaks down and PC Ventress gives Vernon a lift back to Aidensfield. On the way Vernon Scripps hits his head when Ventress has to avoid a sheep on the road. That bump changes his personality and makes him a kind, loving person. He even pays all his debts and gives David a two week holiday on his birthday.

On her way home from night class Sandra Proctor is forced off the road by a hit-and-run driver. Alan Seddon's car was stolen outside the dance hall in Ashfordly. Alan is the son of Roy Seddon, the councillor on the police committee, and Sergeant Miller gives the case top priority. The car is found abandoned, and it turns out to be the car that hit Sandra Proctor. Alan is known for his wild driving and neither his girlfriend Hayley nor his best friend Paul can give him an alibi for the entire evening, so he may have caused the accident and reported the car stolen to cover his tracks. David is fed up with being ordered around by Aunt Peggy and accepts a job with the window cleaner Topsy Turner instead. But Peggy is not prepared to give up on him that easy.