An investigation into the murder of a Wall Street trader takes a shocking turn when Castle and Beckett discover Gates' estranged sister is involved.
When Castle and Beckett investigate the mysterious murder of a Japanese ballet dancer, they end up being targeted by a ninja assassin.
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.
A guilt-ridden woman confesses to a murder, but contradictory evidence and a second confession complicate the case.
The murder of a high school mean girl points to a teenage telekinetic.
Castle and Beckett are thrust into the world of high fashion.
When a pop star is found dead in an alley, Beckett and Castle look into her hard-partying lifestyle; a shocking revelation rocks the investigation.
The murder of a video store clerk with a secret history leads the team to Castle's father.
Castle and Beckett suspect a serial arsonist of murder; Jenny goes into labor.
A dying man leaves a baby with a priest; Castle and Beckett end up taking care of the baby while they investigate.
When a woman who looks very similar to Lanie is murdered, the team thinks the killer may be targeting members of the 12th precinct.
A well-known relationship therapist is murdered.
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.
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.
A murder suspect claims he has traveled back in time to prevent terrible events from unfolding.
A desperate murder suspect insists on negotiating with Castle.
Castle: 'A Deadly Game'
The Mistress Always Spanks Twice: Preview
Castle: 'Murder Most Fowl' Sneak Peek
Castle: "A Deadly Affair" Sneak Peek
Castle - 'TICK, TICK, TICK...'
Castle - Sneak Peek
Watch a sneak peek of the season premiere.
Castle, Ryan and Esposito end up in a precarious situation trying to pick up some information.
Series creator/executive producer Andrew W. Marlowe introduces some of the show's writers. Marlowe talks about an episode's journey from an idea to the writer's room to the set, and says it is a collaborative process.
Jenny introduces their daughter Sarah Grace.
The pieces come together for Beckett to realize who Lazarus is and why she got to survive earlier in the woods. Senator Bracken used to owe her one, but not anymore. Next time they meet, things are going to get real.
To be fair, I am world famous!
Castle: 'Knockdown' Sneak Peek
Anatomy of a Murder: preview
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