The CW has released an official description for the April 7 episode of Reign. The episode is called “Uncharted Waters” and here’s the write-up:
MARY’S COMMITMENT TO HER UPCOMING MARRIAGE WILL BE TESTED — As Mary’s (Adelaide Kane) upcoming wedding looms, a terrible tragedy pushes Mary and Darnley (Will Kemp) apart, forcing Mary to enlist in Catherine’s (Megan Follows) help. Elizabeth (Rachel Skarsten) encounters a traitor to Spain, who petitions her to support an expedition to the New World. Craig Parker, Spencer MacPherson, Ben Geurens, Rose Williams, Dan Jeannotte, Jonathan Goad and Celina Sinden also star. Fred Gerber directed the episode written by Ben Yeon Kim and Erika Lippoldt (#408). Original airdate 4/7/2017.
UPDATE: Better late than never — we now have some preview images! Find them below. Find more of KSiteTV’s Reign coverage here!