The retired school teacher Celia Hanson has bought a cottage in Aidensfield. But she does not get along with her neighbour Don Foster, who does nothing but intimidate her on purpose, she claims. It peaks when his tractor rolls into her car after he threatened to drive straight through it. Furthermore rumour has it that Foster has killed his wife, who disappeared suddenly a few years earlier. Frank Jarvis suggests to Greengrass that he lend him a field to dump waste, but Greengrass will not settle for percentages only if he can be in charge himself and he decides to go into business himself. When he and David collect the first load David finds a live grenade, which he likes so much he decides to keep it for himself as a special treasure.

Gina still has second thoughts about marrying Phil Bellamy, because it means she will have to give up the Aidensfield Arms due to an outdated police regulation, and she goes to back Liverpool to think things over. PC Crane is investigating a strange break-in at old William Barraclough's farm. Nothing was taken, but a statuette was left on a table, and a shop owner says he bought it himself. Barraclough also gets a shipment of cement he has not ordered. Is he getting senile or does somebody wish to make it appear so? Vernon Scripps has been summoned for jury service. He grows impatient when everybody else is chosen before him and leaves, because he has other important things to do as well. He has left David with a thorough list of what to do in his absence.

Oscar Blaketon is doing some private investigating for Hetty Bolton, who correctly suspects her husband Arthur of having an affair with the waitress Dolly Forde. The next morning Arthur Bolton is found murdered at his coal yard and Hetty Bolton claims that she and Blaketon were having an affair and that Blaketon was jealous of him. Debbie Black reports her television set stolen. She is a very attractive widow with three children and makes quite an impact on PC Bellamy. And she does not find him particularly unattractive either. Aunt Peggy buys a greyhound for racing, but the dog is not as fast as it was promised to be. As a matter of fact she has seen corpses livelier than that.

Jocelyn and Rupert Middleton's 17-year-old daughter Vivienne has gone missing. She has an American boyfriend called Bobby Wilson that her parents do not approve of. They think he is only in the country to avoid the draft for the Vietnam War. But Bobby has not seen her either. Someone steals a bronze sculpture from Sir Piers Radley's estate and another one from Lord Ashfordly. They have even taken his lordship's gates and he wants some action - now. David is cleaning up the shed and finds a metal detector. He gives it a good clean, a bit of oil and a new battery and is ready to go treasure hunting. At first Aunt Peggy thinks he is talking nonsense, but she changes her mind after a small demonstration.