|Episode Online Video|
S05, E19 (First Aired:
While stuck at home with a broken leg, Castle believes he witnesses a murder in the apartment across the street.
S05, E20 (First Aired:
Beckett and Castle discover giant footprints at the site of a vicious murder, leading the team to wonder if Bigfoot is the killer.
S04, E10 (First Aired:
Beckett and Castle wake up handcuffed together in bed in a locked room with no memory of how they got there.
S04, E11 (First Aired:
When Castle and Beckett investigate the death of a ladies' man, a twist in the case may disrupt Ryan's wedding.
S04, E12 (First Aired:
When 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.
S04, E13 (First Aired:
The investigation into the death of a famous dog trainer leads to a reality-TV star.
S05, E21 (First Aired:
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.
S04, E14 (First Aired:
Castle and Beckett must investigate a mysterious case from 1947 in order to solve the present-day murder of a treasure hunter.
S04, E15 (First Aired:
Castle and Beckett discover that 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.
S04, E17 (First Aired:
When two women are found dead dressed as fairytale characters, Castle and Beckett must race to find the killer before he strikes again.
S04, E18 (First Aired:
The 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.
S05, E22 (First Aired:
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.
S05, E23 (First Aired:
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.
S06, E01 (First Aired:
Beckett and Castle face the consequences of their decisions during a high-stakes investigation.
S06, E02 (First Aired:
Beckett races to find a stolen toxin capable of killing thousands of people; Castle has less than 24 hours to live after being exposed to the chemical weapon.
S06, E03 (First Aired:
Agents Beckett and McCord arrive to take over Castle and the guys' investigation into the death of a former child star, creating tension in the precinct.
S06, E04 (First Aired:
A desperate murder suspect with a hostage insists on negotiating with Castle.
S04, E19 (First Aired:
When 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.
S04, E20 (First Aired:
An attractive detective from Scotland Yard (Brett Tucker) teams up with Castle and Beckett to investigate the murder of his friend's daughter; Lanie tries to talk Beckett into making a move on Castle.
S04, E21 (First Aired:
Castle 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.
S04, E22 (First Aired:
When a dead man is found with human bite marks on his body, a witness claims the deceased was attacked by a zombie.
S04, E23 (First Aired:
Castle tries to protect Beckett as she pursues the man who shot her; the 12th precinct is forever changed as feelings and secrets are revealed.
S05, E01 (First Aired:
Castle and Beckett set aside questions about their relationship in order to take on the forces responsible for the murder of Beckett's mother.
S05, E02 (First Aired:
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.
S05, E03 (First Aired:
When a woman is murdered, Castle and Beckett think a repossessed storage unit may have a connection to her death.
S05, E04 (First Aired:
Castle's plans with Beckett are disrupted when a dying man stumbles into his backyard and collapses in his pool.
S06, E05 (First Aired:
A suspect (Joshua Gomez) in a grisly murder claims he has traveled back in time to prevent terrible events from unfolding.
S06, E06 (First Aired:
As Castle and Beckett investigate the ritualistic murder of a young woman, they find strange symbols in the victim's apartment; Castle struggles with Alexis' decision to move in with Pi.
S06, E07 (First Aired:
Alexis asks Castle for help proving a death row inmate's innocence 72 hours before his execution, but they uncover a secret that could seal the man's fate.
S06, E08 (First Aired:
When a well-known relationship therapist is murdered, it seems that she was targeted due to the secrets she knew about her powerful and elite clients.