Mary and Darnley are a odds as they put their plan to seize England into action. Meanwhile, Elizabeth's conflicted about her feelings for Gideon as she tries to find a Catholic to wed; and Catherine's son Henri attempts to claim the throne from Charles.

Cast: Megan Follows, Craig Parker, Rose Williams, Charlie Carrick, Ben Geurens, Justin De Bernardi, Steve Byers, Adam Crew, Adam Croasdell, James Gilbert, Megan Hutchings, Adelaide Kane, Will Kemp, Tessa Mossey, Ann Pirvu