Balloon unit WAAFs catch German spies.
After a bunch of no-hopers approaches an employment agency, the anarchy mounts as they do a series of odd jobs, including a chimp's tea party, trying to stay sober at a wine tasting… and demolishing a house.
Doctors Burke and Hare leave the confines of St Swithins for the world of general practice, stopping off on the way as patients at the Foulness Anti-cold Unit. Hare then takes up a position as junior in a well-healed G.P.'s surgery while Burke continues to sow his doctorial wild oats.