Talks about the secret stories of love and marriage from within palace walls, beginning with the strange mystery of Squidgygate and Princess Diana's intimate Sandringham phone conversations with her special friend, James Gilbey.

Uncovers the secret stories of palace private life, beginning with the royal family's race to be by Queen Elizabeth's side in her final moments at Balmoral.

Princess Diana confesses all to a member of staff; King Charles tries to move out his scandal-hit brother; Queen Victoria's favourite lapdog is linked to a massacre.

Delves into the secret stories of palace duty, uncovering behind-the-scenes details of the Queen's final balcony appearance; discovers how not to look after the crown jewels; explores Kate's first palace assignment abroad in Malaysia.