The Walmington-on-Sea Home Guard unit has received exciting news; as Captain Mainwaring puts it, the "long dark tunnel is now illuminated by a bright light shining for all to see".
A detachment of American troops will be arriving in Walmington-on-Sea within the week, and the Home Guard intend to treat them to a traditional British welcome.
It is Jones who has the brilliant idea (arrived at following a characteristically long-winded anecdote about a spear-throwing contest during his military service in the Sudan) of treating their visitors to a darts match in the local pub, to which the platoon will bring their girlfriends.
Mainwaring is surprised by the informality of the American Colonel Schultz (who greets the British officer with a cheery "Howdy partner, put it there!
"), and the colonel is somewhat nonplussed both by Frazer's unique rendition of the Robert Burns poem "Scots Wha Hae" (with strategic updating and references to Hitler) and Jones' complicated explanation of where the term "limeys" originated, but everything seems to be fine, with a number of pleasing propaganda photos taken by a Welsh photographer, Mr. Cheeseman.