A dramatisation based on the exchange of letters between Mary Queen of Scots and her cousin Elizabeth I, detailing the hatred and obsession in their bitter rivalry. Expert historians examine and interpret the royals' motives for the animosity that lasted more than two decades, and which threatened to tear apart the reigning monarch and her kingdom.

• Pioneer Productions
• BBC
• Helen Bradbury
• Beth Cooke
• Adam Burton
• Michael Jenn
• Jamie Laird
• Simon Cotton
• Nicholas Agnew
• Bernard Hill