Alex Ferrenby is knocked down by two men who break into the surgery and steal amphetamines. Afterwards they speed away in Greengrass' pink Chrysler Imperial. To stop the drugs from getting into circulation PC Rowan checks out the schools in the area and is surprised to learn that sergeant Blaketon has a son. But he is looking in the wrong places. Gina is on a girls' night out with her friend Debbie who is rushed to hospital after getting a couple of the pills in a disco. Kate Rowan is worried about Mavis Briggs who is pregnant and has a history of severe morning sickness and miscarriages.

DJ Tiny Weedon is assaulted after playing at a dance at the village hall in Aidensfield. Weedon claims nothing was taken, but word has it that drugs were involved. And according to young Karen Fletcher, who witnessed the assault, sergeant Blaketon's son Graham was one of the assailants. Greengrass delivers a letter to "Sweaty" Betty Such from her late husband Arthur. A few days later PC Rowan is knocked down with a spade at the church yard and the very next morning somebody has been trying to desecrate old Arthur's grave.

An ill wind called Inspector Crossley has blown into Ashfordly police station. Crossley will be supervising Ashfordly and Aidensfield and is known to clamp down on any violation of regulations. Things do not get off to a good start when he finds the police house in Aidensfield used as a temporary surgery by Kate Rowan. Gina is happy because she has got a gig singing at a night club in Whitby. It causes quite a stir when half the village turns up to listen to her. Kate is visited by Sally, an old friend who has a proposition that makes her think. Greengrass's fate has finally caught up with him - in the shape of the Inland Revenue! Graham Blaketon's day in court for his participation in the assault on Tiny Weedon is getting nearer and Blaketon tries to spend more time with him.

Christmas is near and Kate Rowan has arranged that Danny Parkin, who is very ill, gets home from hospital during the holidays. A trip to a sanatorium in Switzerland will do wonders for him and to earn money for the trip his siblings "borrows" Christmas trees from Lady Whitly's estate in order to sell them. The snobby, but very attractive Lady Whitly shows a lot of affection for PC Rowan, who is sent to investigate, and she is also involved in the local Christmas charity concert. The same concert needs a Santa Claus and a reluctant Greengrass is hired for the job. Not surprisingly he tries to make money on the deal. And speaking of Greengrass, somebody has nicked his lorry!