Plot summary
Queen Mother Catherine, working with Leith, traps and kills most of the Red Knights, but is unable to find King Charles, who has fled captivity on his own. John Knox (Jonathan Goad) learns of Queen Mary's presumed death, and pressures Queen Mary's bastard younger half-brother James Stewart (Dan Jeannotte) to dissolve the Scottish monarchy. Queen Mary and Bash are brought to Munro ( John Barrowman ), leader of the McFee; Munro figures out who Mary is, but she kills him. Queen Mary and Bash flee to Edinburgh, where she makes a triumphant entrance before the Scottish nobles.
Queen Elizabeth sends her troops to invade Scotland and take the throne, and refuses to recall them even when she hears Mary may be alive. Narcisse manages to sneak into Elizabeth's palace to reconcile with Lady Lola, but before Lady Lola can escape with him, she receives a coded letter supposedly from Queen Mary ordering her to assassinate Queen Elizabeth.
Credits
Adapted from Wikipedia contributors, Reign season 3. HTML formatting and reference markers removed.