Plot summary
News of the massacre gets out and defenders of the generals rise up against Catherine and Charles. Delphine is brought back to court by Charles to help flush out the Red Knights, but is killed by Christophe when she recognizes him. Bash figures out that Christophe killed Delphine and kills him. Bash also learns of Catherine's other misdeeds — protecting Christophe, killing Bash's mother, and having Claude beaten to win the Regency — and resigns as Deputy of France. Queen Mary uses her mercenary army to protect Catherine and Charles from an uprising of their soldiers, and then leaves for Scotland for good.
Narcisse and Bash join Mary on her ship; Narcisse wants to save Lola, and Bash wants to protect Mary. Catherine falls out with Charles and Claude when they learn what she did to earn the Regency. Lola meets with Gideon, who is searching for a way to free her.
Credits
Adapted from Wikipedia contributors, Reign season 3. HTML formatting and reference markers removed.