After Jackie left him at the end of series 10, Mike becomes friendly with Dr. Tricia Sumerbee. Craddock's efforts to impress an inspector as the station & police house are vandalised. The vandalism turns out to be by a young boy who claims a policeman killed him in a car crash. Vernon & David have a dispute over the house, accusing David of hiding items.

The boy who caused damage to the police property runs off with his 16 year old girlfriend. The girlfriend falls ill after drinking contaminated water.

Vernon eventually persuades Oscar to try a slot machine in the pub. He says he will pay for the winnings himself. Vernon doesnt realise the machine has been fixed by a friend of Bernie's, meaning Oscar enjoys a busy night of trade, eventually the man who fixes the machines foots the bill.

Mr Maxwell, a patient of Dr Tricia Sumerbee is suffering from depression, and keeps walking onto railway lines. It turns out that the depression is due to his wife's death. Meanwhile, Mike considers taking Sergeants exams

A new policeman, PC Tom Nicholson arrives at the station for a prohibationary period. Lord Ashfordly has some figures stolen. Despite suspecting the staff of the theft, it was actually a student, who was using them for research.

When a series of items go missing at a nursing home, the police investigate. After Oscar Blaketon discovers her qualifications are false, suspicion is on the owner, Mrs. Hargreaves. It turns out it was actually one of the residents, who was a little absent minded. David becomes involved in house clearing, but after a not very securley attached 6 turns into a 9, David clears the wrong house!

Vernon conducts tours of Ashfordly Hall. During a tour, a valuable painting vanishes. A journalist, who had caught Ventress asleep whilst on duty, photographed him. Later, when Ventress & Blaketon see the photo, they recognise the culprit - a known thief.

A worker at a nearby carpet factory is injured when machinery breaks down. Until now, the boss Mr. Shields had ignored health and safety. It turns out to be sabotage, as Mr. Shields' girlfriend had wrecked the machinery to get the manager sacked.

Mr. Lawson, the owner of some disused houses, is furious when a commune arrives and takes them over. Lawson is suspected of breaking into the houses. One of the girls in the commune is pregnant, but Oscar persuades Lawson to allow her to stay there with the baby. An undercover journalist was responsible for the break in.

There's a salmonella outbreak and a chicken pie from the Aidensfield Arms is suspected as the source. Two criminals take a mother and her son as hostages and Vernon wants to start a cemetary for pets.

One of Tricia's friends is having problems with her relationship with her boyfriend. She has been under threat from her boyfriend, as she has some important documents. Meanwhile the Christmas lights on the village tree (supplied by Vernon) catch fire.

A forced entry to a Goldsmiths keeps the poilce busy. Craddock is furious to learn one of the suspects escaped from the hospital whilst Tom had fallen asleep! Mr. Veritable, a known cricket player turns up in Aidensfield, but its not long before suspision is aroused and it turns out he was behind the theft.

A man dies of a heart attack on the village green. The police invesitgate a robbery of banknotes from the station. The theives hire & use a holiday caravan of Vernons, as a get away. However its not long before the caravan breaks down and the notes are discovered Craddocks wife, meanwhile, has turned up in Aidensfield and when he tells her that she matters more than his career, they decide to make up and leave Aidensfield together.

Sgt. Merton, freshly demoted from CID, arrives at the police station to take on the new roll as Sergeant. When Ventress brings a disqualified driver in, Alf is threatned if he takes the further, the driver will reveal his past. Oscar presuades Alf to come clean, and Merton is understanding. The driver is later arrested on a drugs case. David attempts to get fit at a gymn, but things don't go too smoothly.

The owner of a large house has recently acquired a ming varse. While he is on holiday, David looks after the house, however he leaves after he learns some other people have moved in. It turns out they are responsible for the missing vase.

Helen Jones returns home walking her dog and surprises a young intruder who strikingly resembles her run-away husband decades ago. Later David finds him in Vernon's barn, and soon Vernon is involved in the wine processing business.

A new health food shop in Ashfordly demands goatmilk, so Vernon and David keep goats, but without a proper pen the goats attack Blaketon's and others' gardens.

A guest house suffers an intrusion but nothing seems to be stolen, Sue Dixon and her teenage daughter have just moved in but there's no harmony between them,

The walking disaster area PPC Nicholson comes of age and the whole village is planning a surprise party for him. To keep him - and everybody else - out of harms way Sergeant Merton sends him out to check tax discs together with PC Bellamy. Jimmy Sutton is suspected to be involved in an armed robbery and the Ashfordly police are asked to check on his whereabouts, but neither his mother nor his wife Lesley have heard from him. PC Bellamy stumbles across the robbers hiding out in the woods, and when he is injured PPC Nicholson offers to be their hostage instead. A heroic action with tragic consequences for him. Lord Ashfordly is playing host to a party of American veterans from World War II. Vernon Scripps persuades him to let the local brass band to be responsible for the entertainment. This is a bad idea because the band leader George Sugden does not like Americans and especially not this lot.

Sergeant Merton is dating Vivienne Keen, but the morning after a date she accuses him of stealing her purse. Merton of course denies the allegation and is suspended pending investigation, but things do not look to good for him when the purse is found in his apartment. Furthermore a similar allegation was made against him ten years earlier, but the case was dropped. PC Bradley still thinks his superior is innocent and begins his own, private investigation at the risk of being suspended himself. Bernie Scripps is acting strangely. He has seen Dr. Summerbee a lot recently and Vernon is afraid he suffers from a serious depression.

Harvey Cottrell buys furniture at almost stealing prizes. He shows great interest in Alice Stanton's Greek figurine and the next day it is gone. The same thing happens to an old mirror belonging to John Salter, and Cottrell turned really nasty when she would not sell him that. The villagers of Aidensfield have to elect either Oscar Blaketon or Joyce Jowett as the parish representative for the counsel and the candidates do everything they can to outdo and discredit each other. Many villagers find it hard to get to the village hall to vote and Blaketon offers to take them there in David's taxi. Dr. Summerbee thinks that exercise will improve general health in Aidensfield and organizes a fitness class. But fitness may not be too good to herself because she collapses after the class.

Saul Arkwright walks his dog close to Lord Ashfordly's estate when the dog is shot by one of Lord Ashfordly's guests Oliver Langley. Since Langley just drives off nearly hitting Arkwright in the process the latter see no other alternative than to make a complaint to the police. When the police do not do enough in his opinion Arkwright takes matters in his own hand. Vernon Scripps has had a new "bright" idea. He has bought a surplus U.S. Army half-track tank to drive tourists around the countryside. But since he has a boil in a very private place David has to drive the half-track for him. David only flattens half the village trying to get the hang of it.

Josie Peters is number one in her class. The class is going on a field trip, but she thinks she cannot go because her family is too poor to pay for it. Her school has a fund for situations like that, but her father will not accept any charity and insists that he will get the money himself. The night before the field trip Ralph Peel, Len Peter's employer, is mugged and the proceeds of the day are stolen. Josie also has a crush on her teacher Roger Gifford, and when her father reads about it in her diary he believes that her fantasies about him are true. The ventriloquist Ernie Dobson has died and left his dummy Enoch to David, who treats the dummy like a real person and drives Vernon Scripps mad.

Alex Robinson stays at the Aidensfield Arms while he tries to purchase land. But Ian Sinclair has beaten him to it and closed the deal with a couple of potential sellers. Lord Ashfordly has invited Robinson to dinner and he asks Gina to accompany him. His car has a flat tire and they have to go in hers. Late in the evening she feels bad and has to go home. The next morning she wakes up in her car only a couple of hundred yards from Ashfordly Hall. The previous evening Sinclair is seriously injured in a hit-and-run accident, and everything suggests that Gina is responsible. Sylvia and Linda are singers in a band, and to ensure that nothing untoward happens their father hires Vernon Scripps to drive them to and fro when they have a gig. But the loud music soon gets too much for him and David has to take over. The two girls soon discover that David is a real push-over in the hands of young females.

Mike and Tricia get involved in a domsetic violence case. tricia seems unwell all the time, complaining of headaches as she goes to the primary school, Jenny puts this down to her stress with Mike- she'd told him that she's in love and he didn't respond. Later After the woman has left her violent husband the husband hides in tricias house, Tricia returns home from a funeral only to be attacked, she manages to escape into the garden where she colapses, Mike later finds her.