Plot summary
Queen Mary discovers that her marriage contract has a secret clause stating that if she dies without an heir, Scotland will be given to France. Queen Mary and Prince Francis secretly meet Scottish Lord MacKenzie ( Andrew Airlie ) to tell him of the contract so he can return to Scotland and protest. Queen Catherine learns of Queen Mary's actions and has all the Scots who know of the contract killed. Queen Mary threatens to reveal to all that King Henry is mad, which forces Queen Catherine to burn the original marriage contract.
Prince Francis is disconcerted by Queen Mary's willingness to start a French civil war to protect Scotland. Bash and Lady Kenna's marriage has a rocky start but Bash later saves Lady Kenna from King Henry's harassment and promises to always defend her. Lady Lola confesses to Julien about her pregnancy but not the father; Julien accepts this and still wants to marry her.
Credits
Adapted from Wikipedia contributors, Reign season 1. HTML formatting and reference markers removed.