Aidensfield has been invaded by a gang of bikers from Ashfordly. Their leader Jason is jealous because his girlfriend Lisa is more attracted to Billy Fletcher. Furthermore he has given Billy some amphetamine pills to sell, but Billy's mother finds them and turns them over to Dr. Merrick, who reports the matter to the police, but refuses to give any names. Sergeant Merton gets the information anyway by tricking his fiancée Jenny to show him the list of patients. Vernon Scripps hires a new chauffeur and insists on calling him by his surname. At least until he learns that the surname is Darling. They start looking for a more suitable housing for Scripps than the old Greengrass farm. Gina and Phil have decided to give their relationship another go and he invites her on a week's holiday to Scotland.