Pop decides to buy the west wing of the country seat of impoverished aristocrats, the Bluff-Gores, initially for scrap, but Lady Bluff-Gore persuades him to go into the property business. Having rebuffed the advances of urbanite Corinne Perigo, Pop is set up when Mrs. Perigo engineers a situation in which he catches hold of nervous Mrs. Jerebohm to stop her from falling over on a boat. Mrs Perigo encourages the other woman to bring a charge of sexual harassment against Pop.

Pop duly appears in court charged with sexual harassment but Mrs. Perigo is discredited when Pop's brother Uncle Perce, a hotel porter in London, testifies that she is well-known in the big city as rather more of a scarlet woman than she paints herself and the case is thrown out. The day of Mariette's wedding to Charley arrives and, as Charley has no family, the Larkins' friend, the Brigadier, acts as best man after he has got rather cosy with another family friend, the sweet but flirtatious Angela Snow.

When ex-fighter pilot 'Honey' Honeyman crash lands in a field near Home Farm he asks Pop to deliver some boxes to his drinking club, the Ace of Clubs. He says they contain kitchen utensils but he has been smuggling drink over from France. The hop garden is Charley's if he can find the cash but ruthless property developer Marcus Cope tries to bribe him into letting him have it.

Pop and Ma go to an open day at their son Monty's Naval Training College, where Pop publicly humiliates a bullying instructor who has been making Monty's life a misery. Charley gets his gun to see off Cope's thugs when they try to destroy the hop-garden, for which he has now got his bank loan to purchase. They return when Cope learns that Pop has got the money from the burglary, which he bank-rolled.

Pop runs for rural councillor while Charley and Mariette struggle at the brewery and have issues in their relationship.

Gypsies get involved in Pop's campaign for rural councillor. Charley and Mariette have to work on their marriage, and finalize the deal to buy Bristow's brewery.