The season four finale of Castle focuses on Kate Beckett. Specifically, the search for her mother's killer.
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Castle and Beckett investigate a car on this season four finale photo. The name of the episode is "Always."
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Beckett has many questions on the season four finale of Castle. She's getting a strange look here for asking them.
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Castle has his intense face on for this scene from the season four finale. It's titled "Always."
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Castle and Beckett are joined here by a priest. It's a scene from the finale of season four.
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No, this is not a scene from The Walking Dead. It's a glimpse at a Castle episode that appears to center on zombies.
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What the heck is going on here?!? Castle and Beckett react to their unusual surroundings on the episode "Undead Again."
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Castle meets The Walking Dead in this scene, as our favorite investigators appear to be surrounded by... zombie?!?
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Castle Quotes

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

Castle

Kate Beckett: You texted Castle and not me?
Kevin Ryan: Well, when you have a crazy theory you don't call the voice of reason.