Reign - Season 4 - Eps 4: Playing with Fire
When Lord Darnley surprises Mary with a visit in Scotland, Mary sees a glimmer of a union that could be more than just political. Elizabeth fights to gain allies in her favor and Catherine must work to get Claude back on track by finding her a new husband.
About Reign

Title: Reign
First Air Date: 2013-10-17
Last Air Date: 2017-06-16
Status: Ended
Rating: 8.055/10 (from 831 votes)
Language: EN
Seasons: 4
Total Episodes: 78
Network: The CW
Genres: Drama
Production Companies: Warner Bros. Television, World 2000 Entertainment, CBS Studios
Synopsis
Mary, Queen of Scots, faces political and sexual intrigue in the treacherous world of the French court.
Cast

Adelaide Kane
Mary Stuart

Megan Follows
Catherine de' Medici

Celina Sinden
Greer

Craig Parker
Stéphane Narcisse

Jonathan Goad
John Knox

Rachel Skarsten
Elizabeth I of England

Spencer MacPherson
Charles IX of France

Ben Geurens
Gideon Blackburn

Will Kemp
Henry Stuart, Lord Darnley

Daniel Matmor
Oliver