Based on John Guy’s acclaimed biography My Heart is My Own: The Life of Mary Queen of Scots, this film explores the turbulent life of the charismatic Mary Stuart. Queen of France and widowed, Mary defies pressure to remarry and returns to her native Scotland to reclaim her rightful throne. But Scotland and England fall under the rule of the compelling Elizabeth 1. Rivals in power and in love, and female regents in a masculine world, the two must decide how to play the game of marriage versus independence. Betrayal, rebellion, and conspiracies within each court imperil both thrones – and change the course of history.