Mary strategizes ways to take over the English throne. Meanwhile, Elizabeth struggles to find an appropriate suitor to marry; and James gets caught up in a scheme orchestrated by John Knox and has to deal with the tragic aftermath.

Cast: Adelaide Kane, Megan Follows, Rachel Skarsten, Craig Parker, Rose Williams, Charlie Carrick, Ben Geurens, Steve Byers, Adam Crew, Adam Croasdell, Andrew Di Rosa, Christopher Fowler, Claire Hunter, Megan Hutchings, Will Kemp