Clemence Posey stars as the young and beautiful Mary, Queen of Scots in this thrilling tale of murder, deceit and religion. Upon the death of her mother the young Mary travels back to her homeland of Scotland from France after 13 years in exile. Discovering that her religion is considered evil Mary tries to allow Catholics and Protestants to worship in there own way unbeknown to her, her half brother Lord James is conspiring with Mary's rival, the Protestant Elizabeth 1st to plan Mary's downfall and replace her as King of Scotland.
When Mary marries the English, and powerful Lord Darnley, James begins to fear for his ambitions even more, when Mary becomes pregnant, and with the birth of her son, the future King James. Lord James realise his plans are destroyed.
With her marriage becoming tempestuous and violent Mary seeks solitude away from her violent husband in the arms of her faithful guard Bothwell, a move which was to become her downfall, for the sake of her son Mary places herself in the hands of her enemy and abdicates.
The series picks up again around 20 years later with James VI ruling Scotland and awaiting the death of the English Queen Elizabeth so he can claim her crown, when he does ascend to the throne all seems well, the people welcome him and except that they have a Protestant King, what he doesn't count on is a group of powerful Catholics, determined he will not destroy their faith and set to blowing up Parliament and the King. Learning of the plan James enlists the help of his adviser, the questionable Lord Cecill and his ill-fated spy Lady Margaret, to identify Guy Fawkes and his group and bring them to justice.
