Based on the real-life court case of a young naval cadet unjustly accused of stealing a five-shilling postal order and first staged in 1946, The Winslow Boy has been revived many times since. Ronnie Winslow is expelled from naval college, having been accused of petty theft. Enraged, his father Arthur engages a lawyer to challenge the Admiralty to prove the charges in court - but public opinion is very much against the Winslows, and each member of the family is suffering.