Dr. Summerbee helps 16-year old Debbie White to get on the pill, because she thinks the relation with her boyfriend Carl Lomax is serious enough for that, and her friend Jenny wants some too. But their parents and the parents of their peers think the good doctor has gone too far. Somebody throws a stone through a window of the police house in Aidensfield, but sergeant Craddock thinks there are more important matters to tend to than finding the culprit. A big inspection is on in a few days and he wants the police station to be in tiptop shape. He changes his mind however when his own police car gets vandalized with paint. And the vandal is just getting started. Vernon Scripps accuses David of eating too much, but they must soon realize that they have an unwanted visitor.

Carl Lomax is found guilty in vandalizing police property and he is persona absolutely non grata with Mr. and Mrs. White because their daughter Debbie got contraceptive pills for his sake. As a matter of fact the whole pill story is making quite a stir in Aidensfield. Dr. Summerbee has one strong support though. Mike Bradley has grown quite attracted to the beautiful doctor after his divorce from Jackie. He is with her when her surgery gets burgled and a lot of drugs are stolen. Things do not get any better when Carl Lomax escapes from custody and Debbie decides to run away with him. Vernon Scripps' latest venture is slot machines, but the sleazy character Charley Woods is the sole supplier in that field, and he does not like competition at all.