TV Show News

Monday's Castle will once again invite out titular mystery writer to put his overactive imagination to work.

In our exclusive sneak peek at Monday's episode (10/9c, ABC) below, Castle (Nathan Fillion) and Beckett (Stana Katic) snoop around their latest crime scene only to find several odd clues. The oddest, of course, are the large animal-like footprints. For Castle, there is only one reasonable explanation: The murderer is Bigfoot! ...

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On Monday's Castle, Detective Kevin Ryan will get a blast from his past.

When Castle (Nathan Fillion) and Beckett (Stana Katic) investigate a murder that leads back to an Irish crime family Ryan (Seamus Dever) once infiltrated as an undercover narcotics cop, he must step back into his old persona in order to bring the family down.

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