Mary (Adelaide Kane) enlists a mercenary to help her, which forces her to realize there are sacrifices and lives she is willing to risk to save her country. Francis (Toby Regbo) embraces his role as Dauphin to lead France in a brutal battle against England, and finds a new ally in Leith (guest star Jonathan Keltz). Meanwhile, as Lola (Anna Popplewell) grows closer to Lord Julien (guest star Giacomo Gianniotti), she gets increasingly suspicious that he is going to betray her.