Beckett gets pulled into an investigation gone bad and includes a dangerous person from her past on Castle.
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Beckett looks concerned about whatever she's walking into on the new episode of Castle airing Monday, March 3rd on ABC.
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How does Capt. Gates feel about sending Beckett into the middle of an undercover operation on Castle? "In the Belly of the Beast" airs Monday, March 3rd on ABC.
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Things go horribly wrong for Beckett during an undercover investigation on Castle. "In the Belly of the Beast" is the 17th episode of the show's sixth season.
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Kate Beckett is smiling. Perhaps she and Castle have made more plans for their upcoming wedding. "Room 147" is the 16th episode of the show's sixth season.
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Kate and Rick looks a little apprehensive about what they might find when they step off that elevator. We wonder what's waiting for them.
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It's winter in NYC so Beckett needs that gray wool coat to keep warm as she investigates the latest murder on Castle.
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Is this man our murder victim or our killer? With multiple suspects knowing the details of the crime it's anyone's guess.
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Castle Quotes

Beckett: (Clears throat) Ahem. What's the deal with men and boobs, anyway?
Castle: Biological. We can't help it.
Beckett: But doesn't it bother you that they're so obviously not real?
Castle: (Pauses) Santa's not real. We still love opening his presents.

Sometimes the hardest things in life are the things most worth doing.

Castle