Nick and Kate's relationship is really put to the test. Nick is slacking in his work, whilst James that her quality of work has also reduced. Nick confides in Blaketon and James is there for Kate to talk to about their problems. Kate tells Nick she is pregnant but he is a lot more keen than she is and is upset when she suggests bringing up the baby on her own, because of their ‘unworkable marriage'. Kate ends up performing first aid on top of a church roof, and Nick is annoyed at her for taking the risk going up there, but she informs him simply that its ‘her job'. Later the situation is reversed when Nick arrests a man with a knife. In the final scene Kate tearfully realises the baby and their marriage is most important and is upset to think she may have ruined her and Nick's special time, but Nick comforts her, telling her everything will be all right and the couple make up happily.

The owners of Abbots Farm are in trouble when an outbreak of tuberculosis hits. Alf has trouble with the car again, only this time he gets it stuck in a river! Nick helps him rescue the car and Claude jokes about some spooky noises in the area. The police uncover some illegal exotic birds.

Kate comes out of hospital with baby Sarah. The atmosphere is extremely sullen and Nick neglects his work, which doesn't go down well with Blaketon. Nick receives reports of prowlers hanging around at night, but he doesn't do anything about it. The next day Mr Copeland complains to Blaketon about Nick's inefficiency and about a tank of petrol he has had stolen. Blaketon is on the warpath and unaware of Kate's condition, goes round to the police house and tears a strip off Nick. Kate realises she can't keep it a secret any longer so Nick finally tells Phil the bad news. Blaketon feels awful for what he said and goes back to apologise. Kate is finding it difficult to cope and asks Nick to take her for a picnic in the hills. But this has disastrous repercussions when she goes down with pneumonia, which immediately worsens her condition. Emotions are running high, and by the time Kate dies everything comes to a head. After the funeral, Nick sees David Stockwell with a petrol can, realising

It is Katie's christening, and everyone is celebrating at Nicks house afterwards, when an old girlfriend of his, Gill, from the Met turns up for a visit. Nick and Gill are asked to go undercover to investigate the criminal activities of the owner of a well known gambling club. Blaketon thinks that Mr Armstrong is going to cheat in an up coming racing event by tampering with the favourite horse, ‘Fab Four'. The police are on to him, and he soon notices he's being watched so he kidnaps Gill and hides her in a horse box. Nick and Phil come to the rescue.

Arthur Wakefield suffers a heart attack after tackling Terry Tinniswood when he tried to burgle his home. Arthur dies, but Mrs Wakefield manages to identify Terry from photos and then from a line up. The Tinniswood family however claim that Terry was at home all night. Mrs Wakefield then sets out to make Terry feel guilty and insecure. Special Constable Cowley who thinks he knows everything is assigned to help Nick on his patch, but Nick isn't pleased with the idea. Cowley is determined to win the prize for the best gooseberries in the up coming flower show. - But his wife makes sure that doesn't happen. Greengrass' plan to cheat in the show goes horribly wrong!