Reign › Season 4

S4 E8: Uncharted Waters

As Mary’s upcoming wedding looms, a terrible tragedy pushes Mary and Darnley apart, forcing Mary to enlist in Catherine’s help. Elizabeth encounters a traitor to Spain, who petitions her to support an expedition to the New World.

Air date	Apr 7, 2017
Runtime	42 minutes
TMDB rating	★ 8.5/10