C Flight have to stay behind when they're picked for maintenance duty, boredom kicks in when everything is found to have been locked up, and Alice falls ill after insisting that she is cooking Christmas dinner for six.
C Flight head to RAF Wareham for target practice and a first go in the air, Lilley's ineptitude on the rifle range has everyone ducking for cover, and a last minute change of plan forces Marsh to confront his secret phobia.
Alice moans about having nothing to burn when the temperature drops, Richardson finds a replacement for Agnes as the object of his affections, and the lads try to find a way to stop Marsh nicking their coke rations.
Alice can't help being suspicious when Marsh starts splashing the cash, Smith does a bunk when his request for compassionate leave is rejected, and the lads panic when corporal duty threatens to expose them as liars.
C Flight are up at half five in the morning to take part in a field exercise, Marsh points out that no erk has ever made it back to ring the bell, and Lilley finds himself appointed team leader to take on the RAF Regiment.
A less-than-successful pulling partner leaves Smith entertaining two girls, Marsh finds a way to avoid paying Leckie the two quid he owes him, and Richardson's upset when he learns that Mrs. Fairfax is moving to Aden.
The lads get fed up with the disgusting food being served up on camp, vat cleaning duty allows them to see the truth about double-standards, and Lilley manages to put himself forward to make a formal complaint.
Leckie comes up with a way to get the blood boiling for bayonet practice, Richardson volunteers to provide cover for the RAF Skelton rugby team, and Marsh spots a golden opportunity to get friendlier with the officers.