Corporal Jones is acquainted with the machinery, and demonstrates it to the rest of them as best he can. Walker and Wilson appear more interested in three land girls. With an uncharacteristic unity the wardens and home guard work together, in the process they manage to overcome a number of problems and incidents, including Jones falling into the hopper and losing his trousers. After finally completing the job, they are delighted with their work. After consuming large amounts of potato wine in celebration, the platoon head outside for the Vicar to bless the harvest. The drink has turned them belligerent, and it descends into a mass brawl.