Galahad's reminiscences removed from the market, publisher Lord Tilbury is anxious to get hold of the manuscript, while Lady Constance Keeble and Sir Gregory Parsloe-Parsloe want to lay hands on it for quite other reasons.

Lord Emsworth fears that Parsloe-Parsloe is out to spoil his prize pig Empress of Blandings' chances at the forthcoming county show, and keeps detective Pilbeam on hand to keep watch.

Hearing that Monty is on his way, and concerned about Ronnie's jealous nature, Sue heads to London, dines with Bodkin and warns him to be distant.

Meanwhile, Connie and Parsloe-Parsloe, unaware of these developments, task Percy Pilbeam with obtaining Galahad's manuscript, used to ensure Sue and Ronnie's marriage is permitted.

Leaving, he calls on the Empress, but is locked in a shed by Pirbright the pig-man, instructed by a suspicious Lord Emsworth to guard the pig closely.

He is released by Monty Bodkin, whom he persuades to steal the book by offering him a year's guaranteed employment—he is worried about his tenure at the castle, as Lord Emsworth suspects him, being the nephew of his rival Parsloe-Parsloe, of scheming to nobble his pig, the Empress.

Fish is distracted by his loss of Sue's love, but once the storm breaks feels better; he sees Monty Bodkin, drenched from the rain, and is friendly towards him.

[4] A television film adaptation, also titled Heavy Weather, was made by the BBC, with partners including WGBH Boston, screened on Christmas Eve 1995 in the UK, and shown in the US by PBS on 18 February 1996.