Reign: Spiders in a Jar (6/20)Mary (Adelaide Kane) makes a bold move to defend her reign in Scotland, which results in a battle royale with her cousin, Elizabeth (Rachel Skarsten).
Reign: Intruders (6/13)With Mary (Adelaide Kane) presumed dead, Elizabeth (Rachel Skarsten) enlists Lola's (Anna Popplewell) help in taking the Scottish crown for herself, while Mary’s half-brother James (guest star Dan Jeannotte) must defend her throne from John Knox (guest star Jonathan Goad).
Reign: Safe Passage (5/23)Mary (Adelaide Kane) learns from Lola (Anna Popplewell) that she has a chance to get to Scotland safely, but she must act quietly and quickly.
Reign: To the Death (5/16)Mary (Adelaide Kane) realizes her need to return to Scotland is becoming increasingly imminent and that along with the help of Bash (Torrance Coombs), she must raise her own army to save her throne.
Reign: Strange Bedfellows (5/9)Mary (Adelaide Kane), in order to protect Elizabeth (Rachel Skarsten), unknowingly puts Gideon’s (Ben Geurens) life in danger.
Reign: No Way Out (5/2)Mary (Adelaide Kane) might have to sacrifice her cousin's life to save her own, as she and Gideon (Ben Geurens) find themselves in unchartered emotional territory.
Reign: Succession (4/25)Mary (Adelaide Kane) must find a powerful suitor to align herself with as Charles’ (guest star Spencer MacPherson) impending Coronation looms.
Reign: The Hound and the Hare (12/4)When Prince Don Carlos (guest star Mark Ghanimé) of Spain visits France, Mary (Adelaide Kane) uncovers a dark secret he is hiding and enlists in Catherine (Megan Follows) to advise her on how to handle. When Gideon (Ben Geurens), the new ambassador from English court arrives, suspicions arise about what his true intentions are, while Bash’s (Torrance Coombs) pursuit of the mysterious killer comes to a head at Greer’s (Celina Sinden) tavern.
Reign: Fight or Flight (11/20)Mary (Adelaide Kane) realizes she must help Catherine (Megan Follows) in her quest to become regent, even at the risk of hurting the alliance with Scotland. Claude (Rose Williams) is determined to help Leith (Jonathan Keltz) marry while Elizabeth (Rachel Skarsten) struggles with the prospect of losing Dudley (Charlie Carrick).
Reign: In a Clearing (11/13)Grateful for a future with a revived Francis (Toby Regbo), Mary (Adelaide Kane) considers signing away her claim to the English throne, and staying in France forever. Catherine (Megan Follows) learns that Nostradamus (guest star Rossif Sutherland) has returned -- with a new vision involving Francis’ fate.
Reign: The Price (11/6)After Mary (Adelaide Kane) receives an urgent message from her ailing mother (guest star Amy Brenneman) about the dire situation in Scotland, she finds herself looking to Francis (Toby Regbo) for aid. Catherine (Megan Follows) finds herself up against Narcisse (Craig Parker) as she fights to become the regent to Charles (guest star Spencer MacPherson). Meanwhile, Elizabeth (Rachel Skarsten) faces continued pressure to wed.
Reign: Extreme Measures (10/23)When King Antoine (guest star Ben Aldridge) unexpectedly returns to Court, Mary (Adelaide Kane) must help Francis (Toby Regbo) hide his weakening condition long enough to secure his family's future. With the Throne in jeopardy and time running out, they must turn to an unlikely ally in need of redemption.