A dance at the village hall in Aidensfield is disturbed by a gang of rockers from Whitby. When PC Rowan refuses to let them in they start vandalizing and not even Greengrass' lorry escapes the vandalism. They even throw a bar of lead they found in the lorry through the village hall window. Only the bar is not made of lead, but of gold. And not even Greengrass knew that! The gold stems from the late Arthur Pickard's work shop, and a few days later his widow Netty finds her house vandalized. Kate Rowan starts getting nosebleeds and contributes it to anaemia in connection with her pregnancy. Unfortunately the reason is far more serious!

Joe Norton and two of his friends are terrorizing Aidensfield and they do not even refrain from emptying PC Rowans garbage bin. Nicking laundry does not seem to be above them either. The traveling gipsy Flo arrives in Aidensfield and tries to make some money by selling luck in the form of small bouquets of lucky heather. Those who do not buy are struck with bad luck, which Greengrass finds out to his discomfort. It does not take long before Norton and his gang set their sights on her caravan. Kate Rowan discovers the real reason for her nosebleed and extravasations. And she is rushed to hospital when she goes into labour.

Aidensfield is in a fever of excitement when Nick and Kate return with their beautiful new-born baby girl and everybody showers them with presents. Only nobody else in the village knows that Kate is dying of leukaemia, and Nick tries to spend as much time with her and the baby as possible. He is even neglecting his job as police constable. That leads to several complaints against him because a thief is stealing petrol from cars in the village at night. Not even sergeant Blaketon's police car escapes the thief.

After Kate's death Nick Rowan discovers that taking care of a new-born baby is a full-time job, and he sends for his mother to help him out for a while. There is bad blood between Colin Dewhurst and his neighbour Oliver 'Tugger' Barker, who shoots at Dewhurst's cat with a rifle. And he does not stop at that and the matter escalates. Greengrass is visited by his nephew Norman. They decide to cash in on Norman's abilities as a dart player.

Frank Mellor has promised Eddie King that he could rent his Aunt Mattie's cottage when she died so that Eddie could marry his girlfriend Brenda, but in stead Mellor has put the place up for sale. When the cottage is auctioned off to Martin Shepherd and his wife the house gets vandalized. A peeping Tom is at work on Lapwing Lane where Brenda lives, and Eddie gets under suspicion for both that and the vandalism. Although Nick's father died during the war his mother Ruby has decided that her life definitely is not over and like a big, white shark she tries to sink her teeth into sergeant Blaketon. When she fails she goes back to London and Kate's Aunt Eileen moves in with Nick in her place.

A young German, Dieter Lotschmeyer, arrives in Aidensfield to visit his father's grave, but he soon discovers that he is not all that popular in the village, because his father was a German bomber pilot during the war and dropped a bomb to lighten his plane before it crashed. The bomb hit a cottage which belonged to Jo Tyler and his family killing both him and his wife, and when the grave is vandalized Tyler's son is the prime suspect. Walter and Hilda Openshaw are on their annual hiking holiday in Aidensfield, but Walter would rather be on a voyage on the Orient Express. He and Greengrass decide to do something about it.

Schoolteacher Barry Jackson's wife Sophie is very ill and not capable of driving a car because of it. Nevertheless she takes the car one day and causes a bit of mayhem in Aidensfield. Soon afterwards Jackson receives threatening letters, and during a school concert somebody sets his house on fire killing Sophie. Malcolm Brown checks into the Aidensfield Arms with his daughter Vicki, but Gina suspects that that something is wrong with them. Apart from that there is an extra resident at the pub - a carrier pigeon, and Gina soon discovers it is very fast bird indeed and they challenge Greengrass to a pigeon race.

During a terrible thunderstorm several people claim to have seen an UFO flying over Aidensfield, and sergeant Blaketon cannot just dismiss the matter because PC Ventress is one of them. Ventress even thinks he was abducted. Bernard and Lily Conway have trouble with their neighbour Ted Halliwell and suspect him of knocking over their milk cans and letting his sheep lose during the storm. Then Conway disappears after an argument with Halliwell. Aunt Eileen has been collecting money for charity on behalf of Hester Jarvis, but when the money gets stolen Jarvis does not want the theft investigated.

One night Gina is awakened by a masked intruder, The Be-Ro Man, who has been breaking in all over North Riding. When he breaks in at the Flax farm their daughter Marion manage to get a close look at him. Claude Greengrass has a new friend. He calls himself Jason Brown, but has an unmistakable likeness to singer/songwriter Bob Dylan and even sounds like him. Brown is joined by two young girls, Paula and Sandra, in a sports car. After a party in Brown's van the two girls go for a fast ride in their car - with tragic consequences for one of them. But which one is it?

PC Rowan is on loan to the CID to investigate local gangster Frank Armstrong. But Rowan has other things on his mind as well. Katie is getting christened and he gets a visit from Jill Criddle, an old friend and colleague from the Met. By request of the CID she teams up with Rowan as his 'floozie'. They soon discover that Armstrong is spreading out his activities to include race horses. Armstrong is not the only one interested in race horses. Greengrass and his friend Billy Black, also known as The Horse Doctor, want to improve the chances of a certain horse in a race. Incidentally Armstrong is also very eager to talk to Black and has sent to goons to get hold of him. Unfortunately Black knows that Nick and Jill are cops!

Arthur Wakesfield surprises a burglar and tries to scare him off, but gets a heart attack from which he later dies in the process. The burglar, John Tinniswood, hardly fares any better, when he comes home because his wife nearly tears his head off, but she still gives him a false alibi when he is arrested for the crime. Wakefield's widow is sure it was him though and starts to follow him around anywhere he goes. Special constable Hector Cowley poses problems of another kind. He is overly officious and a pain in the neck to everybody from sergeant Blaketon and down. And to a lot of other people for that matter. Cowley counts on winning a prize for his gooseberries at the local fair, but somebody destroys them on the night before.

PC Ventress has bought a building plot and wants to build a new home for him and Mrs. Ventress. He has hired Claude Greengrass and David Stockwell to do the digging at the plot. Suddenly they come across a 500 kg highly explosive leftover from World War II. And Greengrass gets trapped right alongside it. PC Rowan starts to evacuate the village while they wait for the bomb squad to dispose of it. To top it all little Colin Ellis has disappeared and is nowhere to be found when the school children and other villagers have been evacuated. During the search for him the police find a dead body at station master Hutton's house. Suddenly the bomb starts ticking!

PC Rowan responses to an anonymous emergency call and find archaeologist Professor Brigstocke dead in his library and the house broken into. The professor was said to hide a treasure and Greengrass decides to find it. Clues lead to the ruins of Saint Columba's Abbey on the Ashfordly estate. But also Mary Secker, who is writing a book on 12th century monasteries, is interested in the ruins. Lord Ashfordly is hosting a fishing party and is not pleased to find fishing net and no fish in his river. Blaketon suspects Greengrass is behind it and when the old scoundrel enters the abbey to look for the treasure, Blaketon is close behind him. They both get trapped and Blaketon breaks a leg when part of the ruins cave in, and Greengrass lights a fire to keep him warm.

An illegal radio station is transmitting from a ship just off the coast outside Whitby. When nurse Bolton starts seeing a young man called Danny the villagers are hearing wedding bells already. But a bit too soon it seems as he turns out to be her brother. Danny helps PC Rowan get a position as a DJ at the illegal radio station. Joe Norton is out of prison after serving a sentence for arson. He wants to turn a new leaf and has sent in an application to join the paratroopers. While he waits for an answer he helps out in PC Rowan's garden and hangs out with old friends. They fix him with a new drug that really sends him flying. Joseph and Greengrass think that George is charging too much for his drinks and decide they can do better end cheaper themselves.

When PC Rowan is on patrol one morning he notices Charles Carter who is camping on private land with his son Simon. But Carter has to permission from the owner of the land. Later Rowan notices man lurking around their caravan. The man introduces himself as Clive Loxton, a friend from London. Later Loxton turns up with a woman called Michelle Blanchard, who claims to be Simon's mother and that Carter has abducted him after they got divorced. By then Simon has been taken to hospital with polio. As president of the local Rugby association sergeant Blaketon is allowed to enter a team of his own. One of the players, Ken Fairbrother, is particularly good and Greengrass offers his services as his manager.