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World famous mystery writer Richard Castle finds unexpected inspiration when Detective Kate Beckett questions him about a series of murders that based on his books.
The murder of a former teen star from a '90s high school sitcom takes a strange turn when Beckett and McCord arrive at the 12th to take over the case and find a new detective at Beckett's desk on Castle.
With Castle's life on the line and a stolen toxin threatening thousands of people, Beckett and McCord scramble to stop a terrorist attack and save Rick's life on Castle.
Will she or won't she? We learn Kate's response to Rick's major question on the Castle Season 6 premiere.
Beckett reconsiders what she wants out of her job, and out of her relationship, in the Season 5 finale of Castle.
Why are federal agents trying to take over a case? That's the question on Castle this week.
Beckett's life is on the line on this episode of Castle after she steps on a bomb. Uh-oh!
Beckett is assigned to protect a billionaire on this episode of Castle, which prompts her to reflect on her relationship.
When a dead woman is found with claw like slash marks, Rick wants to believe Big Foot is the culprit on Castle.
Rick goes stir crazy when he's stuck at home and thinks he witnesses a murder in another apartment on Castle.
We learn a lot more about Ryan on this episode of Castle, as the detective goes undercover.