The Foyle and Sam double act in full flow: Foyle’s acting as referee for the Home Guard’s ‘War Games’ - and Sam is driving him. Finding Henry Gordon Jago (sorry, too much Doctor Who!), Christopher Benjamin’s Brigadier Harcourt in need of a car, Foyle offers him a lift. Then he and Sam proceed to find great amusement in the regular Army turning the tables on Harcourt by having his men dress in the uniform of the Home Guard.
(Foyle’s War: War Games)