Charlotte Redhead, a young British secretary, finds herself in a degrading extra-marital affair with her boss. In reaction, she renounces Sex and links herself platonically to a handsome young Bohemian (John Conway) she meets by chance, tramping in the fields. Together, under a powerful romantic excitement, the two rush off to Belgium in the early weeks of World War I, having organized their own little volunteer ambulance corps. The romance of the adventure begins to break down when the various ambulance corps start to back-stab each other, each selfishly seeking to one-up the others for glory. The real crisis comes when the central characters begin to reveal the true human characters behind their romantic delusions, in the end turning the attention back to the genuine human suffering that was the real story of the hideous Great War.