Armia tatuśka

As the threat of invasion lessens, the towns people begin to relax. Mainwaring orders Operation Wake-Up, dressing the platoon up as fifth columnists, and telling them to act suspiciously.

Pike borrows Mainwaring’s recently acquired staff car to drive his new girlfriend to Eastgate, but, still heady from his raspberryade binge, it runs out of petrol nine miles from home on the way back, forcing Pike to spend all night pushing it back.

As part of a Wings for Victory campaign, the platoon decide to stage a re-enactment of the battle between St George and the Dragon, with Mainwaring as St. George – but the ARP wardens have been planning exactly the same thing.

Frazer, distrustful of banks, keeps his savings in the form of gold sovereigns – but Mainwaring believes his hoard would be better in Mainwaring’s bank. Rumours spread about the savings, and when Frazer is seen carrying a box to the graveyard, the platoon follow.

The platoon is given the job of guarding telephone wires, otherwise known as "highly secret invasion warning devices" – but as the vicar arrives to lead a service, Mainwaring sees an unexploded bomb caught in the wires.

Corporal Jones is married to Mrs Fox – but the service is interrupted as an invasion warning is sounded. The platoon break the fourth wall and raise their glasses to toast Britain’s real Home Guard.