It’s Darnley and John Knox vs. Mary. Who will be the victor? Find out in the Reign episode airing May 19.

The episode is titled “Coup de Grace” Here is the synopsis from TV Guide: “Darnley teams up with John Knox to strip Mary of her throne, and this plot will leave a friend of Mary’s dead. Meanwhile, Elizabeth must banish Gideon from court; and Charles takes a bold stance against his brother Henri.”

Don’t miss Reign “Coup de Grace” airing May 19 at 9/8c on The CW.

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