As the U.N. Security Council considers reinstating sanctions against Iran for its suspected nuclear activities, Elizabeth tries to stop Israel from taking matters into its own hands when it threatens military action against the Iranians.

Elizabeth heads to Brussels to seek NATO’s support against Russia when it threatens to invade Bulgaria, but when France refuses to cooperate, it could threaten the alliance’s very existence. Also, Henry’s new government role has him dive into the Russia issue and turn to his former operative, Dmitri Petrov for help, and as Nadine and Mike B’s relationship heats up, Elizabeth finds out information about her old friend that makes her question his loyalties.