Plot summary
Queen Mary's ship sinks in a storm, though she, Narcisse and Bash are washed ashore in northern Scotland. Mary and Narcisse narrowly escape being killed by a local clan, the McFee, while Bash is taken by druids to be healed. Narcisse leaves for England after helping reunite Queen Mary with Bash. The McFee attack and slaughter the druids, so Mary and Bash pretend to be sibling merchants in order to survive. Queen Mary and Bash also agree to travel with the McFee — this clan was behind the attack that killed King Francis, so Mary hopes to meet their leader and exact revenge.
Mary is confounded with the Wulvers. Queen Elizabeth and Lady Lola entertain the Prince Magnus, Duke of Holstein of Denmark (Kyle Gatehouse), a potential suitor for Elizabeth, and avoid an international mishap due to Lola's quick thinking. Elizabeth learns of Queen Mary's ship sinking and, believing that Queen Mary is dead, invites Lady Lola to join English court permanently. King Charles, hoping to assert his power and be granted full kingship, pursues his own plan to stop the Red Knights in Orsay, but is betrayed by one of his friends and captured.
Credits
Adapted from Wikipedia contributors, Reign season 3. HTML formatting and reference markers removed.