Nearing death after being wounded, a brave Captain asks a nurse to read to him an as yet unopened letter carried in his pocket. He discovers it is from his long-lost first love enquiring after her son who is serving in the Captain's unit. Tragically, however, her son was a soldier whom he had recently had to condemn to death for cowardice and, as he asks the nurse to reply on his behalf, he decides that a lie is kinder than the truth.