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.
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.
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.
Castle: 'Murder Most Fowl' Sneak Peek
Castle - 'TICK, TICK, TICK...'
Beckett looks stunning and her upcoming wedding to Castle starts to feel very real and close.
Moderator and TV host Tom Bergeron asks cast members Ruben Santiago-Hudson (Roy Montgomery) and Tamala Jones (Lanie Parish) about getting the takes they want.
Castle: 'A Deadly Game'
The Late Shaft: Preview
Nikki Heat: Sneak Peek
They discover they don't have a song!
Castle: "A Deadly Affair" Sneak Peek
Fans ask cast member Nathan Fillion (Richard Castle) about fun moments on the set and what it's like working with different directors like Joss Whedon. Susan Sullivan (Martha Rodgers) says this set is more relaxed than other shows she's been on.
Castle sneak peek.
Castle: 'Close Encounters of the Murderous Kind' Sneak Peek
Castle sneak peek
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