In the middle of a heatwave, workers down tools because there is no factory heating.

The greatest influence on top management comes from a shop floor apprentice, Mick.

Managing Director Dicky Bligh (Henry McGee) is going fishing, Bernard Peck (Lance Percival) is to attend his mother’s wedding (her second, he hastens to add), Sid Stubbins (Norman Bird) is off to London for a conference of his union's national executive and Bert Hamflitt (Dudley Sutton) is showing his prize marrow at the local women’s institute. That is until a ‘bullet maker’ in the guise of Fred Brewer (Derek Newark) puts a spanner in the works. He gives shop steward Sid Stubbins, his bullets to fire in the form of endless union demands, which must be thrashed out over the weekend.

Bert Hamflitt, the part-time medical assistant, feels his position is threatened when the company engage a trained nurse.

Fred Hamflitt decides to improve his station in life but holds out on the golf course.