'Castle' Season 6 Episodes
Beckett and Castle face the consequences of their decisions during a high-stakes investigation.
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.
“Need to Know”
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.
“Number One Fan”
A desperate murder suspect insists on negotiating with Castle.
“Time Will Tell”
A murder suspect claims he has traveled back in time to prevent terrible events from unfolding.
“Get a Clue”
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.
“Like Father, Like Daughter”
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.
“A Murder Is Forever”
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.
When a woman who looks very similar to Lanie is murdered, the team thinks the killer may be targeting members of the 12th precinct.
“The Good, the Bad & the Baby”
A dying man leaves a baby with a priest; Castle and Beckett end up taking care of the baby while they investigate.
When Castle and Beckett discover that the victim of a building fire was actually shot to death, they get on the trail of a serial arsonist turned murderer. Meanwhile, Ryan's wife, Jenny, goes into labor, but disaster threatens to ruin the joyous moment.
The murder of a young video store clerk takes a strange turn when the team discovers his past history as a high-level hacker. But it's nothing compared to the shock Castle receives when their investigation leads them straight to his father, Jackson Hunt.
When a rising young pop star is found dead in an alley, Castle and Beckett delve into the victim's out-of-control hard-partying lifestyle, but as they dig deeper, a shocking revelation threatens to rock their investigation.
“Dress to Kill”
When the assistant to Modern Fashion Magazine's dictatorial editor Matilda King is found murdered, Castle and Beckett are thrust into the glitzy, ruthless world of high fashion in their search for the killer. Meanwhile Beckett's history in the modelling world gets her access to a very special wedding surprise.
“Smells Like Teen Spirit”
The murder of a high school mean girl draws Castle back to one of his many alma maters, where he is giddy to learn that the evidence points to a surprising perpetrator, a teenage telekinetic, throwing he and Beckett into a real-life "Carrie."
A guilt-ridden woman confesses to a murder, but contradictory evidence and a second confession complicate the case.
“In the Belly of the Beast”
Beckett is asked to assist with a narcotics investigation; when a routine undercover operation goes awry, Beckett is faced with dangerous men from the New York underworld.
“The Way of the Ninja”
When a Japanese ballet dancer is mysteriously murdered, Castle and Beckett’s investigation into her secret life uncovers evidence that she was killed by a ninja, and now that ninja is coming after them.
“The Greater Good”
Castle and Beckett investigate the murder of a Wall Street trader, but the case takes a shocking turn when the they discover the victim was an undercover informant for the U.S. Attorney's office. To complicate matters further, the U.S. attorney involved is Elizabeth Weston, Captain Gates' estranged sister.
“That '70s Show”
When construction workers find the body of an infamous New York mobster who disappeared in the seventies, Beckett and Castle try to solve this three decade-old Mafia hit. Unfortunately, their only witness is a man who thinks it's still the 1970s, so to uncover what he knows, they must play into his delusion, and party like it's the last days of disco.
“Law & Boarder”
A mysterious motorcyclist shoots an up-and-coming professional skateboarder.
Beckett becomes a suspect when a man she had been surveilling is killed.
“For Better or Worse”
When a surprise threatens to spoil Castle and Beckett's wedding day, they set out on a wild mission.