When Simon, and English envoy, tells Mary that the English are aware of her fragile engagement to Francis, Mary and Francis put on a show to protect their alliance. Meanwhile, when Queen Catherine learns that someone knows about her plot to destroy Mary is still alive, she stops at nothing to make sure they are silenced for good. Torrance Coombs, Alan Van Sprang, Anna Popplewell, Celina Sinden, Caitlin Stasey and Janessa Grant also star.