Blandings Castle is bathed in mellow sunlight, but for some of its inhabitants the storm clouds are forming.

Ronnie Fish desperately needs a plan of action. Engaged to delightful chorus girl Sue Brown, Ronnie must persuade his uncle (and trustee) Lord Emsworth to hand over a large chunk of capital before they can marry. Meanwhile waspish Lady Constance Keeble is marshalling her forces to stop her brother Galahad causing panic among the aristocracy by publishing the tale of his misspent youth.

Between them, they stir up mischief and mayhem involving the sensational theft of a prize-winning pig, a conscience-stricken butler and a scheming sleuth, and on-again, off-again love affairs. Once again it all proves too much for the Efficient Baxter.