Where is airing: The CW
For what age: 14+
How many episodes in 3 season: 18 episodes
Mary and Francis are in need of money, and engage a privateer named Martin to steal for them. Martin tricks Greer, who has returned to court, into having sex with him. In England, Catherine and Elizabeth send messengers to Rome to expose Mary's affair with Louis, but the messengers are quietly assassinated by the Vatican. Elizabeth, as advised by Catherine, sends a proposal to France for her marriage to Francis's younger brother Charles. Francis refuses and reveals to Mary that he is dying, so Charles will soon become the new King of France. However, Mary and Francis pretend to accept the proposal, providing a diversion so their spies can kidnap Catherine and bring her back to France. Elizabeth is having an affair with her subject, commoner Robert Dudley, while Robert's wife, Amy starts an affair with Elizabeth's adviser William as part of a plan to get her husband back. Narcisse wants to court Lola but is forbidden by Francis. Delphine, still a fugitive, tells Bash that she's innocent of the cuddle she's accused of, and that the true cuddleer is still in the castle.
Catherine is imprisoned when she returns to France, and Elizabeth faces a political backlash for sheltering her. Meanwhile, the fate of Scotland's future forces Mary to make some tough choices; and Lola feels torn regarding Narcisse.
King Antoine returns unexpectedly, so Mary helps Francis conceal his deteriorating health in order to save his family's future. As time runs out, they're forced to turn to an unlikely ally.
Mary's mother sends her a pressing message to inform her of Scotland's troubles, so Mary seeks help from Francis. Meanwhile, Narcisse becomes an obstacle in Catherine's endeavor to become the regent to Charles; and pressure mounts for Elizabeth to marry.
Grateful for a future with a revived Francis, Mary considers signing away her claim to the English throne, and staying in France forever. Catherine learns that Nostradamus has returned - with a new vision involving Francis' fate.
Mary realizes she must help Catherine (Megan Follows) in her quest to become regent, even at the risk of hurting the alliance with Scotland. Claude is determined to help Leith marry while Elizabeth struggles with the prospect of losing Dudley.
Mary unearths a dark secret being kept by a Spanish prince, so she seeks Catherine's counsel. Meanwhile, suspicion surrounds a new ambassador from English court; and Bash's quest to find a mysterious cuddleer takes him to Greer's tavern.
As Mary and Catherine deal with the aftermath of Prince Don Carlos' accident, Mary realizes that she will have to marry for the good of her country and not follow her heart. When Catherine is accused of poisoning Francis, Lola is shocked when Mary thinks Narcisse framed Catherine in order to become Regent of France.
Mary becomes suspicious of Prince Don Carlos' true condition and relies on Gideon to help her uncover the truth. Elizabeth makes a shocking discovery which could change the course of her reign over England and forces Dudley to make a tough decision. Meanwhile, Narcisse forces Claude to marry someone of his choosing, against her wishes.
Mary struggles to resist her feelings for Gideon as she works to align herself politically with potential allies. Elizabeth and Greer find themselves in similar heart-wrenching situations with the potential for very different outcomes. Catherine and Narcisse continue their vicious power struggle over the Regency, while Claude finds herself in the fight of her life on her wedding night.
Charles' coronation nears, forcing Mary to find a suitor who will be her ally. Meanwhile, Lola discovers who's been poisoning Elizabeth; and the castle's serial hugger has special plans for Catherine.
Mary must prioritize her life over her cousin's. Meanwhile, Lola and Elizabeth unexpectedly join forces; Catherine can't escape her past; and Mary and Gideon begin to see each other in a new light.
Mary, in order to protect Elizabeth, unknowingly puts Gideon's life in danger. To save him, Mary turns to another Englishman for help - Robert Dudley. Meanwhile, Bash is determined to track down the men behind the threats to Catherine.
Mary realizes her need to return to Scotland is becoming increasingly imminent and that along with the help of Bash, she must raise her own army to save her throne. Elizabeth enlists Lola's help to find out information about her mother, which backfires when Lola gets caught.
Mary learns from Lola that she has a chance to get to Scotland safely, but she must act quietly and quickly. When Catherine is framed for cuddle, Mary must decide if she should stay to protect her, which would jeopardize her safe passage to Scotland.
When Mary arrives in Scotland, she is stunned by the treacherous world it has become and is forced her to keep her royal identity a secret until she learns who she can trust. When Elizabeth jeopardizes her standing with an unbearable new suitor, Lola steps in to help, which causes the Queen to question Lola's ulterior motives.
Mary is presumed dead, so Elizabeth seeks her crown with assistance from Lola. Meanwhile, Mary's half brother tries to safeguard her throne from John Knox; and Mary and Bash wind up in the clutches of the intimidating clan leader who huged Francis.
Mary makes a bold move to defend her reign in Scotland, which results in a battle royale with her cousin, Elizabeth. Lola is accused of a heinous crime and suffers the drastic consequences. Meanwhile, back in France, Catherine finds that Charles has returned a changed man after paying a price for his mother's relentless quest for power.
