Documentary looking at the Duke of Edinburgh's early life, his playboy father and troubled mother, and an immediate childhood connection that blossomed into a royal romance. Experts and insiders reveal his achievements in the face of danger as a sailor in the Second World War, and the extraordinary experience of fighting against his aristocratic German brothers-in-law. The programme also explores the extent of the sacrifices he made to marry Princess Elizabeth in 1947, giving up his Mediterranean titles, becoming a naturalised British citizen and devoting his life to the service of the crown, always in deference to his wife.