Historian Dan Jones tells the story of the Wars of the Roses, a 30-year civil war between the House of York and House of Lancaster during which the crown changed hands seven times. Using a combination of documentary and drama, he begins by looking at the reasons for the start of the conflict, revealing it was not caused by scheming Yorkists and belligerent Lancastrians trying to snatch the crown, but by two people fighting to preserve the rule of the ineffective King Henry VI - his smart French wife Margaret of Anjou and his powerful cousin Richard, Duke of York.