The platoon finally get to grips with the enemy when they have to guard some Nazi Submariners but the Germans turn the tables on Mainwaring and try to escape but somehow Jones ends up with a grenade down his trousers

When news that the King is to travel through Warmington-On-Sea, by train, Capt Mainwaring and the platoon, are detailed to provide an honor guard,then the local stopping train breaks down on the main line,and the King's train is due any time.

The platoon have gone away to a camp to undergo an efficiency test Meanwhile Walker has a van load of onions to sell to Hodges Later with no blank shells to use on the test Mainwaring has a brain wave and he uses the onions as ammunition to pass the test

When a relative of Sergeant Wilson dies, he inherits the title, Then when a Russian factory worker visits the town, to boost Anglo-Russian relations,Mainwaring has been asked to present the key of the town, until the mayor hears about Wilson's title, and asks Mainwaring to step down.

The platoon get lost on a wild and stormy night and have to take shelter in a old and deserted house that is used for training tracking dogs When Pike gets his uniform wet he changes it for an old German uniform but when the dogs get loose, they chase Pike and the platoon across the fields

Capt Mainwaring has gone into hospital for an operation on an ingrowing toenail Meanwhile Wilson as acting C O has Asked the Vicar and the Verger to join the platoon to make up the numbers