Businessman Sammy Devlin is a bully but he also sits on the police authority. When his son Geoff is stopped for drinking and driving he insists on talking to Insp. Lynch. Devlin warns Lynch that if he wants a career he should let Geoff go.
Former teacher Miss. Ford has fallen out with her landlord Percy Haskell. She claims that he and his relatives are conspiring to get her out of her cottage so he can move in when he marries. The more she complains the worse problem gets.
Unmarried Mary Mangan has just given birth to a baby at Quarry Grange but the child's adoption has been delayed. Mary is suffering from depression and decides to walk out, taking the baby with her. Matron wants the police to find her.
DC Skinner is on a bad run of luck. When the Tench family home is broken into he is initially uninterested. When he reconsiders he finds missing items in the garden. Learning Tench is a psychiatric patient he jumps to the wrong conclusion.
Quilley and Skinner arrest drug pusher Jill Conrad. During a search of her flat a quantity of heroin is found and she is arrested. Former detective Neil Goss, now a solicitor, represents her and claims it was they who planted the drugs.
Quilley and Lynch bump into Neil Goss and scientist Bob Parker, at country pub. Parker is angry about the number of lorries using back roads to the quarry. An hour later the pair find a lorry has crashed with Parker the only witness.
Harry Dance tips Bert Lynch off about an armed robbery but can't give him any details until the next day. When he fails to show, Lynch asks his wife, only to learn Harry has vanished. He now needs to find Harry quickly to stop the robbery.
Kinell and Scatliff are sent to investigate £250 stolen from a posh public school. Teacher Tom Ballard has massive gambling debts. When Connor visits the Ballard's he learns that Tom is a compulsive gambler and Kinell should tread softly.
Quilley finds a young couple hiding in a stable but believes the girl is under age. Sgt. Stone scares them into giving their names. When Quilley confirms who they are, he now wants to let them go but has to get Insp. Lynch to agree.
Albert Smith is discharged from Budley Mental Hospital. Parsons joins him searching for his 5-year-old daughter Joanna. Police get involved when he approaches a young girl. Dr. Reynolds says he has been there for 18 years and totally sane.
Quilley teaches PC Barratt how to deal with juveniles but Barratt makes a mistake and Eric Tyson and goes free. Skinner and Stone believe Tyson burgled Rushforth's and when Skinner recognises his gossiping hairdresser sister he knows how.
Quilley visits the Cunningham house to ask about Clive Parsons, who is an armed robber who has escape from Walton Prison. Quilley tells Skinner there is something in the attic. Inside is their son Derek who they believe has killed a girl.
Skinner and Hicks are on a stakeout at Tommy Burford's house. Willy Tyndale arrives but Burford is not at home. His son Geoff and his friends start to panic when Tyndale decides to wait for him. Burford tries to get the police to help him.
Ken Sweeney is the respected secretary at the Long Lane Working Men's Club. On Committee night, Tom Stone is told, by two members, that they suspect Ken of stealing £800 from the club. Sgt. Stone is forced to investigate the accusation.
£10,000 of stock has gone missing from Gatehouse Metals. Police get a tip off about a lorry and should check who has gone off sick. Owen Evans is on the rota but the doctor won't give him a sick note. He is now under pressure to get one.
A missing child, an unstable mother and a desperate father occupy the police force of Newtown at the same time as an investigation into the patrons of the Pothole club and their dealings in stolen goods is going on.
Sgt Stone is feeling that he has made very little difference in his career to preventing young criminals from offending again and is talking about finding other challenges outside of the police force. Inspector Lynch is giving Sgt Stone a shoulder to lean on and trying to help him work through it. In the meantime, a gang of kids are spending their unfilled days with small acts of vandalism and general anti social behaviour, 3 of this gang decide to break into a local electronics factory but are beaten by the alarm system and while they are trying to escape through some derelict buildings one of them falls through the floor and is badly injured so one of his friends seeks help from the police who are investigating the alarm. The injured lad goes to hospital and his friend is taken to the police station where Sgt Stone sees a chance to talk to the young lad and tries to explain to him just how his life will go if he continues on this path of minor crimes and where it will lead for him by spending his life in and out of trouble and or prison and that he has a chance to make something of his life to get out of the poverty and degradation in which he lives with his mum. This story centres around Sgt Stone's sense of failure and the young lad's choice to make something of his life while he still can.
Alec Quilley impresses language expert Fiona Robbins, who offers to help him improve his career chances. Mary Smith is caught with four purses but refuses to cooperate. Miss Robbins tips off Quilley that she is really Margaret Smythe.
Beth Bramley is major burglar. Just released from jail, Garry Norton is goaded to act has look out. Insp. Lynch spots Norton on West Stanley Road and arrests him. Lynch wants a confession before D.S. Kinell returns from the crime scene.
Two yobs behind three robberies, in ten days, attack a nightwatchman and leave him with a fractured scull. Sgt. Stone believes the men are working for someone else and will likely move on. A snout gives him two names but he wants "Mr Big".
George Sharp, school bus driver and youth club leader has an unhappy work and home life and imagines forming a drum and fife band will make it all worthwhile. But he finds out a teenage temptress and her wayward brother have other ideas.
There's a bank job being set up according to an informant and Newtown police are getting ready to pounce. But with Stan and his family mixed up in it nothing will happen as planned or expected.