As all the road signs have been removed from the area the platoon are ordered to put up temporary ones to help a large convoy on maneuvers that is due to drive through the area but due to the condition of the ground the platoon's van gets stuck in the mud

Pike gets his head caught in the park railings and the platoon are summoned to help meanwhile a large bomb has exploded near the town and has put the gas and electricity supplies out of order When Mainwaring returns to hear what has happened he puts the town under martial law

While on maneuvers the platoon come in contact with an escaped gorilla

The platoon are dressed as Morris Dancers for a local show when Jones comes to Capt Mainwaring with a problem concerning Mrs Fox Jones thinks she is seeing the town clerk and wants Mainwaring to sort it out for him

Lady Maltby offers her Rolls Royce to Capt Mainwaring for use as his staff car. After the car has been disguised with camouflage paint, it has to be repainted black, because the Mayor's car has run out of petrol, and there no official car to greet a visiting V.I.P.