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Queen Mary discovers there is a leak amongst her advisors and sets out to uncover the traitor. Queen Elizabeth enlists Narcisse to further her quest for supremacy. Catherine takes desperate measures to regain some of the power she has lost.
First Air Date : Oct 17, 2013
Last Air date : Jun 16, 2017
Episode : 78 Episode
Season : 4 Season
Runtime: 42:14 minutes
Studio: The CW
Country: United States of America