[1] A panning shot moves across the members of the platoon while they are watching; Walker putting his arm around a blonde girl, Jones looking dreamy, Frazer muttering "rubbish", Godfrey asleep, Pike sucking his thumb, Wilson looking bored, and Mainwaring looking superior.
When Walker, Pike and Jones start larking about then singing the ribald song "Roll Me Over in the Clover" Mainwaring stops them and apologises to the conductress.
Frazer gives a long rambling explanation of how he complained to the manager about the "sheer historical inaccuracies of the film", but eventually admits sheepishly that he got his money back.
This provokes a discussion in the ranks, about how one cannot get butter or parsnips (with Walker offering to obtain both), until he says that the platoon will have to stand to attention whilst Sergeant Wilson plays the National Anthem on the gramophone six times.
They stand to attention, but Wilson plays the German National Anthem "Deutschland Über Alles" by mistake and is half asleep, so Mainwaring has to shout at him to turn it off.
Walker arrives and gives Wilson two bottles of Black Market stout, and presents Mainwaring with some similarly sourced cheddar cheese.
Cut to the end of the feast, when Jones tells a wonderful rambling story about a native girl he nearly married in the Sudan.
It features the rest of the cast in various roles, including Wilson as Wellington, flanked by Frazer as Gordon of the Highlanders and Hodges as a senior officer.
Many catchphrases and actions are used: "put those lights out", "you stupid drummer boy", "Godfrey's sister's upside down cakes", "Oi, Napoleon", and also some phrases from earlier in the episode, such as Sponge saying "we should have sat down the front, in the ninepennies" when Mainwaring complains that he cannot see the battle.
[1] They exchange farewells, then Mainwaring wakes up to find that he has overslept and he has a rude note from his wife complaining that he did not come home last night.