Castle Season 4 Episodes
Season 4 Episode Guide
Episode 1 - RiseDetective Beckett struggles to survive; Castle tries to identify the shooter; Ryan and Esposito try to adjust to the new captain.
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Episode 2 - Heroes and VillainsCastle and Beckett suspect a costume-clad vigilante is responsible for the mysterious murder of an ex-con.
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Episode 3 - Head CaseCastle and Beckett investigate a crime scene that involves a large pool of blood but no victim; Alexis receives news about Stanford.
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Episode 4 - Kick the BallisticsWhen a young woman is shot to death, Beckett and Castle learn the gun used was the one a serial killer stole from Detective Ryan.
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Episode 5 - Eye of the BeholderA sexy insurance investigator -Kristin Lehman- with a secret helps Castle and Beckett when a valuable sculpture is stolen and someone is murdered.
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Episode 6 - DemonsCastle and Beckett investigate the murder of a ghost hunter who was looking into a haunting at a New York mansion.
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Episode 7 - Cops and RobbersMartha and Castle are held hostage by bank robbers dressed in hospital scrubs; Beckett's rescue efforts are hindered by a strict hostage negotiator (Dean Norris).
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Episode 8 - Heartbreak HotelWhen a casino owner is murdered at an abandoned warehouse, suspects emerge in New York and Atlantic City; during the investigation, Castle throws an impromptu bachelor party for Ryan.
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Episode 9 - Kill ShotThe team searches for a sniper who is terrorizing New York; Beckett tries to hide her worsening PTSD from Castle and the detectives.
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Episode 10 - CuffedBeckett and Castle wake up handcuffed together in bed in a locked room with no memory of how they got there.
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Episode 11 - Till Death do Us PartWhen Castle and Beckett investigate the death of a ladies' man, a twist in the case may disrupt Ryan's wedding.
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Episode 12 - Dial M for MayorWhen a woman is found dead in her car, the investigation leads to New York Mayor Robert Weldon (Derek Webster), one of Castle's longtime friends.
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Episode 13 - An Embarrassment of BitchesThe investigation into the death of a famous dog trainer leads to a reality-TV star.
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Episode 14 - The Blue ButterflyCastle and Beckett must investigate a mysterious case from 1947 in order to solve the present-day murder of a treasure hunter.
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Episode 15 - PandoraCastle and Beckett discover the killer they are pursuing is part of an international conspiracy and they must work with a CIA agent with whom Castle has a history.
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Episode 16 - LinchpinBeckett and Castle must stop a series of events that could result in a war.
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Episode 17 - Once Upon a CrimeWhen two women are found dead dressed as fairytale characters, Castle and Beckett must race to find the killer before he strikes again!
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Episode 18 - A Dance With DeathThe investigation into the death of a contestant on a popular dance competition show leads Castle and Beckett to a shocking secret that may have led to her death.
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Episode 19 - 47 SecondsWhen a bomb kills five people at a protest rally, Beckett and Castle try to solve the case by reconstructing the 47 seconds prior to the explosion.
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Episode 20 - The LimeyA detective from Scotland Yard teams up with Castle and Beckett on a murder investigation.
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Episode 21 - HeadhuntersCastle takes on Detective Ethan Slaughter (Adam Baldwin) as his partner when tension between himself and Beckett rises, and he sees a new side to police work that puts him in danger.
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Episode 22 - Undead AgainWhen a dead man is found with human bite marks on his body, a witness claims the deceased was attacked by a zombie.
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Episode 23 - AlwaysCastle tries to protect Beckett as she pursues the man who shot her; the 12th precinct is forever changed as feelings and secrets are revealed.
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