Princes at War takes up the story where the film The King's Speech ended as king and country are plunged into the Second World War and the greatest crisis in modern times

King George V predicted that his eldest son, Edward VIII, would destroy himself within a year of succeeding to the throne. In December 1936 he was proved right, and the world's press broke their Great Silence: King Edward VIII was abandoning his throne to marry Wallis Simpson, a divorced American socialite.