A murder investigation ends up involving Capt. Gates family on Castle. "The Greater Good" is the 19th episode of the show's sixth season.
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What is lurking on the other side of that door? Could it be ninjas? On Castle anything is possible.
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Is Beckett searching for a killer or does she know they're on the hunt for a ninja?
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Rick looks oblivious to the professional killer he's about to face. Maybe he can use it in the next book, if he survives.
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What is Rick holding and is there any chance it will help him fight off a ninja? "The Way of the Ninja" is the 18th episode of the show's sixth season.
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Castle can't believe his eyes. Who actually expects to face off with a ninja? Well, maybe Castle.
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Beckett and Castle are in a big empty space. Little do they realize what type of visitors may be lurking in wait.
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Do Kate and Rick have any idea they are about to face off with a ninja. "The Way of the Ninja" is scheduled to air Monday, March 17th on ABC.
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Castle Quotes

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

Castle

Rick Castle: Checking you for bites and scratches. Just making sure you didn’t somehow get impregnated.
Kate Beckett: If you think that’s how I’d get pregnant we need to talk.