Nola Augustson

Mary makes a decision that will change the course of history, forever shaping the fate of her nation, her crown, and her newborn son. Mary's perilous move for her survival causes the stunning realization that perhaps she is not the only one who may not survive. Meanwhile, Elizabeth steadies herself for war and will become the instigator in Mary's demise while later realizing she and Mary might be more similar than either thought.

Queen Mary (Adelaide Kane) discovers there is a leak amongst her advisors and sets out to uncover the traitor. Queen Elizabeth (Rachel Skarsten) enlists in Narcisse (Craig Parker) to further her quest for supremacy. Meanwhile, Catherine (Megan Follows) takes desperate measures to regain some of the power she has lost. Spencer MacPherson, Will Kemp, Dan Jeannotte, Jonathan Goad, Ben Geurens, Celina Sinden and Rose Williams also star.

Mary and Darnley wed in a lavish affair, which proves to be a successful decision in regards to her political standing. James makes an interesting discovery about Greer, while Elizabeth frantically tries to salvage England's power.

Queen Mary, unsure who to trust, tests her brother James to ensure his loyalty after hearing of his meeting with John KnoxQueen Elizabeth agrees to help Lord Darnley, in an attempt to sabotage the powerful suitor's relationship with Mary.

Gideon (Ben Geurens) shows Mary (Adelaide Kane) what life could be like if she chose love over country. Catherine (Megan Follows) fights to cover King Charles' (Spencer MacPherson) increasingly erratic behavior, while Claude (Rose Williams) finds an unlikely enemy in her sister Leeza (guest star Anastasia Phillips). Rachel Skarsten, Dan Jeannotte, Will Kemp, Jonathan Goad, Celina Sinden and Craig Parker star.