Sergeant Miller has a clash with three Australians when they graze his patrol car on their way to Grimedale Farm to do some sheep shearing for George Grigson. And Miller is not the only one having trouble with them. They are eating Gina out of house and home - or at least Aidensfield Arms - and Grigson's golden watch is missing when they have left the farm. Others also find their way to Aidensfield. Reverend Jamie Finn returns to collect his motor bike - and not the least to see Rosie again. Furthermore he has a suggestion that completely knocks her off her feet. Aunt Peggy is short of money and buys a brand new washing machine open up a laundry. But modern contraptions like that are complicated machines - especially for David. Miller has a word with PC Mason about his replacement, but Mason is not sure he wants to leave anymore. Rosie Cartright decides to go to Australia with the visitors when they return.

A cat burglar is causing the police endless worry. He is targeting the wealthy houses of the area, and PC Mason suspects the window cleaner Tommy Hugget who has form, but his wife Betty gives him an alibi. However Mason is convinced that they are hiding something. Major Giles MacLean makes quite an impression on Carol Cassidy when he asks her for directions to Ashforly Hall. The major is on his way to his regiment reunion i Edinburgh and takes his lordship up on his offer to stay a couple of nights. But he too is the victim of the cat burglar. Aunt Peggy is outraged when David finds a young woman camping out on his field - without paying, but changes her tune when she discovers that the woman is her old friend Sofia. And she cannot get them hitched fast enough when David and Sofia feel attracted to each other. It is hard for Bernie to mind both the garage and the funeral parlour and he looks forward to Rosie's return from Australia. But not even her family has heard from her for several months, and when her sheep-shearing friend Mick turns up in Aidensfield asking for her Bernie and her father fear that something has happened to her.

DS Dawson and PC Mason go to Australia to find out what happened to Rosie. They are joined by Carol Cassidy who wants to search for her brother whom she has never met. Dawson and Mason locate Rosie's and Mick's last employer Mrs. Patterson. She sacked the young couple after Mick beat up Rosie in a row, and nobody has seen the young girl after she left town on the bus the following day. But Mason has a feeling that not everybody is telling everything they know. Back in Aidensfield Sergeant Miller has some questions for Mick who is still in the area. Meanwhile Carol finds out that her brother is called Daniel, and she puts an ad in the paper. This puts her in contact with a Doctor Cunningham who claims to know Daniel, but the doctor also has ulterior motives.

The search for Rosie continues. Mick MacDonald is no longer a suspect since PC Mason and DS Dawson have discovered that another young blonde woman - like Rosie - has disappeared in the area. All of a sudden, Carol Cassidy - also a blonde - has disappeared too. And to top it all, a stranger turns up in the town asking for her.