England, 1912. The Winslow family arrives home from church in time for a carefully orchestrated meeting between Arthur Winslow, the patriarch, and John Watherstone, the young man set to marry Arthur's daughter, Catherine, an ardent suffragette. Just after the family toasts, Arthur discovers that his youngest son, Ronnie, is back early from the Naval College at Osbourne - dismissed for stealing a five shilling postal note. Arthur asks him if he is guilty but Ronnie swears that he is innocent. Arthur dedicates himself to clearing his son from the school, he decides to retain the well known attorney, Sir Robert Morton.