1914. The Great War rages. Men in their millions have shipped off to join the fight. But in the village of Rittle-on-Sea, three chaps have stayed behind: George (Joe Thomas), a conscientious objector; Cecil (Simon Bird), a reject from the army on health grounds; and then there's Bert (Jonny Sweet), an amoral philandering scaredicat. They couldn't be more different, but in the eyes of their neighbours they're all the same: Chickens. So in a world of women, children and the infirm, these fellows have only each other for company and nothing else.