THERE IS ONLY ROOM FOR ONE QUEEN — Mary (Adelaide Kane) risks everything to take down Condé (Sean Teale), even as Francis (Toby Regbo) believes she is turning against France. Catherine (Megan Follows) makes a bold move and meets with Queen Elizabeth (guest star Rachel Skarsten) in a stunning plot to seek revenge on Mary. Meanwhile, Kenna (Caitlin Stasey) has a secret that will seal the fate of her relationship with Bash (Torrance Coombs). Celina Sinden, Anna Popplewell, Craig Parker, Jonathan Keltz and Rose Williams also star. Fred Gerber directed the episode written by Laurie McCarthy and Nancy Won.