• Season 5 - Episode 24 : Watershed May 13, 2013

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    An interview with a federal law enforcement agency forces Beckett to reconsider her career and her relationship with Castle; a young woman's body is found inside a flop house's water tank.

  • Season 5 - Episode 23 : The Human Factor May 6, 2013

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    When a government whistleblower is murdered, Beckett and Castle must figure out who is responsible and determine why Homeland Security is trying to take over the case.

  • Season 5 - Episode 22 : Still Apr 29, 2013

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    When Beckett steps on a pressure-sensitive bomb, the team searches for a way to save her while Castle distracts her by talking about their relationship.

  • Season 5 - Episode 21 : The Squab and the Quail Apr 22, 2013

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    When Beckett is tasked with protecting a charming billionaire whose life is in danger, she reflects on her relationship with Castle; consumed with jealousy, Castle tries to solve the case as quickly as possible.

  • Season 5 - Episode 20 : The Fast and the Furriest Apr 15, 2013

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    Beckett and Castle discover giant footprints at the site of a vicious murder, leading the team to wonder if Bigfoot is the killer.

  • Season 5 - Episode 19 : The Lives of Others Apr 1, 2013

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    While stuck at home with a broken leg, Castle believes he witnesses a murder in the apartment across the street.

  • Season 5 - Episode 18 : The Wild Rover Mar 25, 2013

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    When a body is discovered in an industrial cake mixer, the murder is traced to an Irish gang and a bar owner named Siobhan O'Doul (Cara Buono); Detective Ryan reveals a history with Siobhan from his time working under cover in narcotics.

  • Season 5 - Episode 17 : Scared to Death Mar 18, 2013

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    Castle and Beckett tackle one of their creepiest cases yet when a woman appears to have been scared to death by a "haunted" DVD; Castle fears for his life after he accidentally watches the video.

  • Season 5 - Episode 16 : Hunt Feb 25, 2013

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    After the FBI fails to get Alexis back, Castle takes matters into his own hands; Castle learns that his daughter's kidnapping may be a part of a larger and more sinister agenda.

  • Season 5 - Episode 15 : Target Feb 16, 2013

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    A murder investigation reveals a plot to kidnap a wealthy businessman's daughter; FBI Agent Harris (Dylan Walsh) helps Castle and Beckett investigate.

  • Season 5 - Episode 14 : Reality Star Struck Feb 11, 2013

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    The young rising star of "The Wives of Wall Street" is murdered; Castle tries to give Beckett a Valentine's Day gift, but his plans go awry.

  • Season 5 - Episode 13 : Recoil Feb 4, 2013

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    Castle and Beckett discover evidence that links a young woman's murder to Sen. William H. Bracken (Jack Coleman) -- the man responsible for the murder of Beckett's mother; Beckett faces complications as she tries to finally bring Bracken to justice.

  • Season 5 - Episode 12 : Death Gone Crazy Jan 21, 2013

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    When the founder of an adult video franchise is murdered, Beckett and Castle are faced with a lengthy list of suspects; Castle is upset when Alexis starts a revealing video blog.

  • Season 5 - Episode 11 : Under the Influence Jan 14, 2013

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    Castle and Beckett are thrust into New York's raucous music industry as they investigate the murder of an up-and-coming DJ; Esposito takes a troubled teen under his wing.

  • Season 5 - Episode 10 : Significant Others Jan 7, 2013

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    Several angry ex-husbands come under suspicion when a divorce attorney who only represented women is murdered; when Alexis gets sick, Castle's ex-wife moves into the loft to take care of her.

  • Season 5 - Episode 9 : Secret Santa Dec 3, 2012

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    Castle and Beckett investigate when a bearded man named Kriss Kringle falls from the sky in Central Park; Beckett and Castle work on a Christmas list together.

  • Season 5 - Episode 8 : After Hours Nov 19, 2012

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    While retrieving a murder witness, Castle and Beckett are ambushed, forcing them to take the witness on the run.

  • Season 5 - Episode 7 : Swan Song Nov 12, 2012

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    A documentary crew follows Castle, Beckett and the team as they investigate the murder of a rock band's lead guitarist.

  • Season 5 - Episode 6 : The Final Frontier Nov 5, 2012

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    As Beckett and Castle investigate a murder at a sci-fi convention, they encounter avid fans in costume, egotistical celebrities and a lot of drama.

  • Season 5 - Episode 5 : Probable Cause Oct 29, 2012

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    The investigation into a ritualistic murder turns up evidence linking Castle to the crime, leading Beckett to wonder how well she really knows him.

  • Season 5 - Episode 4 : Murder, He Wrote Oct 15, 2012

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    Castle's plans with Beckett are disrupted when a dying man stumbles into his backyard and collapses in his pool.

  • Season 5 - Episode 3 : Secret's Safe With Me Oct 8, 2012

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    When a woman is murdered, Castle and Beckett think a repossessed storage unit may have a connection to her death.

  • Season 5 - Episode 2 : Cloudy With a Chance of Murder Oct 1, 2012

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    On Beckett's first day back from suspension, she and Castle investigate a weathercaster's death, and try to hide their relationship from their co-workers.

  • Season 5 - Episode 1 : After the Storm Sep 24, 2012

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    Castle and Beckett set aside questions about their relationship in order to take on the forces responsible for the murder of Beckett's mother.