For the first time, the extent of the Duke of Windsor's treachery during World War II is revealed; not just sympathising with the enemy but, new evidence reveals, actively collaborating.

Following the lives of ten characters through their letters and diaries in the ten days before D-Day. The mini-series contains documentary interviews with the people on which the book, and this mini-series were based.

Simon Sebag Montefiore embarks on a fascinating journey to unlock 2,000 years of Spain's history.