In Plane Sight: As Castle and Alexis fly to London, their plane hits some turbulence when the Air Marshal is found murdered. Castle must stop the killer before a fiendish plan takes off. (S7 Ep21)
Dead from New York: When the creator of a long-running comedy sketch show is murdered, Castle and Beckett investigate and uncover a shocking secret. Singer Carly Rae Jepsen guest stars. (S7 Ep22)
Hollander's Woods: While investigating a death in the woods, Castle is confronted with a defining event from his childhood that's haunted him. Beckett also meets a fork in the road herself. (S7 Ep23)
XY: There are different sides to every story in this two-parter. The explosive chain of events after a mysterious phone call is first told from Castle's perspective in this season premiere. (S8 Ep1)
Mr & Mrs Castle: Castle and Beckett board a cruise ship to investigate the murder of an entertainer, but the case isn't all plain sailing when they become trapped at sea with the killer. (S8 Ep8)
Tone Death: The team enters the unexpectedly dangerous world of competitive acapella when the body of an ex-con turned singer is discovered in the same theatre as Martha's latest show. (S8 Ep9)
The Fast and the Furriest: When Castle and Beckett find giant footprints at a murder site, they are forced to confront the unlikely theory that the legendary Bigfoot is the killer. (S5 Ep20)
The Lives of Others: Holed up in the loft with a broken leg, Castle thinks he witnesses the murder of a young woman in the apartment across the street. (S5 Ep19)
The Lives of Others: Holed up in the loft with a broken leg, Castle thinks he witnesses the murder of a young woman in the apartment across the street. (S5 Ep19)
The Wild Rover: When a man is found dead in an industrial cake mixer, Castle and Beckett trace the murder to an Irish gang in Staten Island and a beautiful bar owner. (S5 Ep18)
The Wild Rover: When a man is found dead in an industrial cake mixer, Castle and Beckett trace the murder to an Irish gang in Staten Island and a beautiful bar owner. (S5 Ep18)
Scared to Death: When a young woman appears to have been scared to death three days after watching a "haunted" DVD, Castle and Beckett delve into one of their creepiest cases yet. (S5 Ep17)
Scared to Death: When a young woman appears to have been scared to death three days after watching a "haunted" DVD, Castle and Beckett delve into one of their creepiest cases yet. (S5 Ep17)
Hunt: In the conclusion of a two-episode story arc, when the FBI fails to get his daughter back, Castle takes matters into his own hands, reaching out to a shadowy fixer for help. (S5 Ep16)
Hunt: In the conclusion of a two-episode story arc, when the FBI fails to get his daughter back, Castle takes matters into his own hands, reaching out to a shadowy fixer for help. (S5 Ep16)
Target: In the first of a two-episode story arc, Castle & Beckett begin a murder investigation that also exposes a plot to kidnap the daughter of a Middle Eastern businessman. (S5 Ep15)
Target: In the first of a two-episode story arc, Castle & Beckett begin a murder investigation that also exposes a plot to kidnap the daughter of a Middle Eastern businessman. (S5 Ep15)
Reality Star Struck: Castle & Beckett get an up-close-and-personal view of a reality TV series when they investigate the murder of the show's rising young star. (S5 Ep14)
Reality Star Struck: Castle & Beckett get an up-close-and-personal view of a reality TV series when they investigate the murder of the show's rising young star. (S5 Ep14)
Recoil: While investigating the murder of a woman, Castle and Beckett find evidence that links her death with Senator William H Bracken, the man responsible for Beckett's mother's murder. (S5 Ep13)
Recoil: While investigating the murder of a woman, Castle and Beckett find evidence that links her death with Senator William H Bracken, the man responsible for Beckett's mother's murder. (S5 Ep13)
Death Gone Crazy: When the founder of a hit adult video franchise is murdered, Castle and Beckett are confronted with a lengthy list of suspects. (S5 Ep12)
Death Gone Crazy: When the founder of a hit adult video franchise is murdered, Castle and Beckett are confronted with a lengthy list of suspects. (S5 Ep12)
Under the Influence: When an up-and-coming DJ is killed at a pop star's album release party, the duo dive into the raucous world of New York's music industry. (S5 Ep11)
Under the Influence: When an up-and-coming DJ is killed at a pop star's album release party, the duo dive into the raucous world of New York's music industry. (S5 Ep11)
Significant Others: When a divorce attorney who only represented women is murdered, Castle and Beckett are confronted with several angry ex-husbands, any one of whom could be the killer. (S5 Ep10)
Significant Others: When a divorce attorney who only represented women is murdered, Castle and Beckett are confronted with several angry ex-husbands, any one of whom could be the killer. (S5 Ep10)
Secret Santa: When a bearded, rotund man in a red Santa suit with an ID reading Kris Kringle falls from the sky in Central Park, Castle and Beckett seek Santa's killer. (S5 Ep9)
Secret Santa: When a bearded, rotund man in a red Santa suit with an ID reading Kris Kringle falls from the sky in Central Park, Castle and Beckett seek Santa's killer. (S5 Ep9)
After Hours: A bickering Castle and Beckett are sent to retrieve the only witness to a murder. But when they get ambushed, they're forced to take the witness on the run. (S5 Ep8)
After Hours: A bickering Castle and Beckett are sent to retrieve the only witness to a murder. But when they get ambushed, they're forced to take the witness on the run. (S5 Ep8)
Swan Song: When the lead guitarist of a rock band is murdered, the documentary crew that were following the band turn their cameras on Castle, Beckett and the team as they tackle the case. (S5 Ep7)
Swan Song: When the lead guitarist of a rock band is murdered, the documentary crew that were following the band turn their cameras on Castle, Beckett and the team as they tackle the case. (S5 Ep7)
Probable Cause: While investigating a shocking ritualistic murder, Beckett and her team uncover surprising evidence linking Castle to the killing. (S5 Ep5)
Probable Cause: While investigating a shocking ritualistic murder, Beckett and her team uncover surprising evidence linking Castle to the killing. (S5 Ep5)
Murder, He Wrote: Castle and Beckett's plans for a romantic weekend in the Hamptons are interrupted when a dying man stumbles into Castle's backyard. (S5 Ep4)
Murder, He Wrote: Castle and Beckett's plans for a romantic weekend in the Hamptons are interrupted when a dying man stumbles into Castle's backyard. (S5 Ep4)
Secret's Safe with Me: When a young woman is mysteriously murdered, Beckett and Castle discover that her death may be linked to a repossessed storage unit up for auction. (S5 Ep3)
Secret's Safe with Me: When a young woman is mysteriously murdered, Beckett and Castle discover that her death may be linked to a repossessed storage unit up for auction. (S5 Ep3)
Cloudy with a Chance of Murder: On Beckett's first day back from her suspension, she and Castle are thrown into the salacious world of local TV news when WHNY's weather girl is found dead. (S5 Ep2)
Cloudy with a Chance of Murder: On Beckett's first day back from her suspension, she and Castle are thrown into the salacious world of local TV news when WHNY's weather girl is found dead. (S5 Ep2)
After the Storm: Having spent the night together, are Castle and Beckett now a couple? Before they can decide, they must take on the forces responsible for Beckett's mother's murder. (S5 Ep1)
After the Storm: Having spent the night together, are Castle and Beckett now a couple? Before they can decide, they must take on the forces responsible for Beckett's mother's murder. (S5 Ep1)
A Dance with Death: When a contestant on a dance show is found murdered in her dressing room, Castle and Beckett discover the star was harbouring a shocking secret. (S4 Ep18)
Once Upon a Crime: When a woman dressed as Red Riding Hood is found dead in the woods, Castle and Beckett find themselves on a Grimm hunt to catch a fairytale killer. (S4 Ep17)
The Blue Butterfly: When Castle and Beckett investigate the killing of a treasure hunter, they discover the case is linked to a mysterious homicide from 1947. (S4 Ep14)
Linchpin: In the conclusion of a two-part story, Castle and Beckett race to find the 'Linchpin' in order to stop a chain of events which will plunge the United States into war. (S4 Ep16)
Pandora: In the first of a two-part 'Castle' event, Castle and Beckett pursue a ruthless killer who, they discover, is part of a sinister, international conspiracy. (S4 Ep15)
Dial M for Mayor: A woman is found dead in a car that belongs to the Mayor's motor pool, and the scandal surrounding the investigation threatens to bring down Weldon's administration. (S4 Ep12)
The Blue Butterfly: When Castle and Beckett investigate the killing of a treasure hunter, they discover the case is linked to a mysterious homicide from 1947. (S4 Ep14)
An Embarrassment of Bitches: When a dog trainer is killed, the investigation points to a TV star. A therapist is called upon when it's discovered one of her clients witnessed the murder. (S4 Ep13)
Cuffed: When Castle and Beckett wake up in bed handcuffed together, in a locked room with no memory of how they got there, they must piece together the mystery of where they are - and why. (S4 Ep10)
Dial M for Mayor: A woman is found dead in a car that belongs to the Mayor's motor pool, and the scandal surrounding the investigation threatens to bring down Weldon's administration. (S4 Ep12)
'Til Death Do Us Part: When a lothario is killed, Castle and Beckett suspect the victim's mysterious double life holds the key to his murder. (S4 Ep11)