TV series
Love is the most dangerous subject.
Mary, Queen of Scots, faces political and sexual intrigue in the treacherous world of the French court.
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Checked Jul 22, 2026
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Mary, Queen of Scots, faces political and sexual intrigue in the treacherous world of the French court.
Cast, crew and production details
Adelaide KaneMary Stuart
Toby RegboFrancis II of France
Will KempHenry Stuart, Lord Darnley
Dan JeannotteJames Stuart
Torrance CoombsSebastian
Megan FollowsCatherine de' Medici
Celina SindenGreer
Caitlin StaseyKenna
The CWUnited States
Warner Bros. TelevisionUnited States
CBS StudiosUnited StatesWatch options above are for the show and may vary by season or episode.
Episode 1
Mary arrives in France to formalize her arranged marriage to Prince Francis, but complications arise when she meets his attractive half brother and skeptical mother in the series premiere of this historical drama about young monarchs.
Directed by Brad SilberlingWritten by Laurie McCarthy, Stephanie SenguptaGuest stars Jenessa Grant, Joe Taylor
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Episode 2
Mary and Francis play up their romance after an English envoy expresses doubts about their union. Elsewhere, Catherine seeks to eliminate an individual who's aware of her scheme to destroy Mary.
Directed by Matthew HastingsWritten by Laurie McCarthyGuest stars Jenessa Grant
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Episode 3
A Portuguese prince offers much-needed aid to Scotland if Mary accepts his marriage proposal and break things off with Francis. Elsewhere, Francis' feelings for Mary lead him to put Bash in a risky situation.
Directed by Holly DaleWritten by Doris EganGuest stars Shawn Doyle, Jonathan Keltz, Jenessa Grant
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Episode 4
Mary has a chance to get out of her engagement, but it requires lying and sentencing a man to death. Meanwhile, Francis and Bash suspect that Tomas may be disguising his real motives.
Directed by Scott PetersWritten by P.K. SimondsGuest stars Shawn Doyle, Jonathan Keltz, Jenessa Grant
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Episode 5
An ex-lover of Francis' arrives and brings danger with her, so an uneasy Mary turns to Bash for comfort. Meanwhile, Queen Catherine persuades Aylee to snoop on Mary; and Bash lands in hot water with heretics, who accuse him of disrupting a sacred ritual.
Directed by Bruce McDonaldWritten by Jennie Snyder UrmanGuest stars Yael Grobglas, Jonathan Keltz, Jenessa Grant
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Episode 6
Francis observes the growing bond between Mary and Bash, so he turns to Olivia. Meanwhile, Catherine wants to ensure that whoever threatened Mary is captured; Bash seeks to repay his debt; and Kenna tells her friends about her affair with Henry.
Directed by Bradley WalshWritten by Wendy RissGuest stars Jenessa Grant, Zoe Cleland
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Episode 7
Mary and Francis are taken hostage when the castle falls under siege, and Catherine makes a shocking suggestion in an effort to save them. Meanwhile, Diane reveals to Bash that she's plotting to have him declared legitimate.
Directed by Jeremiah S. ChechikGuest stars Jonathan Keltz, Jenessa Grant
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Episode 8
Nostradamus shares with Mary his prophecy about a death, which leads Mary to make a big decision concerning Francis. Meanwhile, Clarissa gets brazen as she pursues her goals; and Kenna tells Catherine about Diane's intentions regarding Bash.
Directed by Fred GerberWritten by Laurie McCarthyGuest stars Jenessa Grant
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Episode 9
Mary and Bash return to the castle, where Catherine remains resolved to keep Francis safe from Mary. Meanwhile, Francis learns of the dark prophecy, but it does not dissuade his desire to marry Mary.
Directed by Helen ShaverWritten by Alan McCullough, Edgar LyallGuest stars Michael Torontow
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Episode 10
An assassination attempt is made on Bash's life, and Catherine appears to be responsible for it. Meanwhile, Mary offers assistance to a jailed peasant who has a curious link to Bash; and Lola tries to stop Catherine from meddling with Bash and Mary.
Directed by Rachel TalalayWritten by P.K. Simonds, Daniel SinclairGuest stars Ted Atherton
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Episode 11
Henry claims Catherine has committed treason and adultery, so she attempts to save herself by shedding light on a dark part of Bash's past, and Bash and Mary then try to even the score. Meanwhile, Nostradamus discloses the truth about the castle's ghost.
Directed by Mike RohlWritten by Doris EganGuest stars Greg Bryk
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Episode 12
Clarissa kidnaps Henry and Catherine's youngest sons, so Catherine turns to Mary and Bash for help. Elsewhere, Lola tries to assist her brother with a debt, but when she gets in over her head, Francis comes to her aid.
Directed by Holly DaleWritten by Alan McCullough, Wendy RissGuest stars Ted Atherton, Zoe Cleland
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Episode 13
Mary must decide whether to marry Bash or Francis, who returns accompanied by Lola. Meanwhile, Mary's mother visits and pushes her own agenda, and her mere presence in the castle troubles both Henry and Catherine.
Directed by Fred Gerber, Laurie McCarthyWritten by Laurie McCarthyGuest stars Kimberly-Sue Murray
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Episode 14
Mary's honeymoon ends and she returns to the castle. Meanwhile, Lola displays some odd behavior, which leads to a secret being exposed; Bash finds a bewildered Olivia and asks Nostradamus to assist her; and Henry seeks help from Catherine.
Directed by Norma BaileyWritten by Drew LindoGuest stars Hannah Emily Anderson, Aislinn Paul
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Episode 15
A matchmaking event is held for the women in the castle, but Lola doesn't want to take part in it. Meanwhile, Kenna grows frightened when Henry flies into another rage, so she turns to Catherine; and Bash learns firsthand about the horrors of the woods.
Directed by Steve DiMarcoWritten by Charles Grant CraigGuest stars Jaiden Cannatelli, Jonathan Keltz, Hannah Emily Anderson
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Episode 16
Bash saves Francis' life while they're in the woods exploring the latest ominous threat. Meanwhile, Henry becomes obsessed with a servant who won a contest; Greer is seen kissing a kitchen servant; and Henry forces a new couple into a union.
Directed by Jeff RenfroeWritten by Drew Lindo, Wendy RissGuest stars Jonathan Keltz, Kathryn Prescott
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Episode 17
Mary uncovers her marriage contract's secret clause, which was added by Catherine and her mother, so she and Francis attempt to persuade the people of Scotland to renounce her mother.
Directed by Allan KroekerWritten by Doris EganGuest stars Kathryn Prescott
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Episode 18
Mary's brother visits and asks her to return to Scotland, but Francis is suspicious of his motives. Meanwhile, Penelope takes command as Henry's mental instability progresses; and Lola is skeptical about Julien's marriage proposal.
Directed by Mike RohlWritten by Hannah SchneiderGuest stars Paul Braunstein, Kathryn Prescott
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Episode 19
Mary's uncle arrives at the castle and brings dire news about her mother, forcing Mary and Francis to make a tough choice about priorities. Meanwhile, Henry devises a destructive plan; and Bash and Kenna grow closer as they strengthen their forced union.
Directed by Chris GrismerWritten by Mike Herro, David StraussGuest stars David Knoll, Kathryn Prescott
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Episode 20
Mary hires a mercenary to help her save Scotland. Meanwhile, Francis prepares France to wage war on England, and Leith becomes his ally in this endeavor; and Lola and Julien's bond deepens, but she fears he will betray her.
Directed by Sudz SutherlandWritten by Daniel Sinclair, David BabcockGuest stars Jonathan Keltz, Shauna MacDonald
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Episode 21
Mary teams up with Catherine to deal with Henry, whose deranged behavior puts Francis at risk. Elsewhere, Bash resolves to destroy the Darkness after meeting a boy who survived the horror; and a devoted Lola tries to protect Julien.
Directed by Jeremiah S. ChechikWritten by Drew Lindo, Wendy RissGuest stars Katherine Barrell, Spencer Robson
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Episode 22
Mary and Francis take drastic action in response to Henry's madness. Meanwhile, a terror in the woods puts everyone in peril; and Mary makes a bold choice when she discovers Lola is in the midst of a life-threatening labor.
Directed by David FrazeeWritten by Doris Egan, Laurie McCarthyGuest stars Jonathan Keltz, Tara Nicodemo
Where to watch ReignEpisode information updated Jul 22, 2026
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