Beckett goes undercover on this episode. That involves popping a couple of blouse buttons, much to Castle's delight, as previewed in this video.
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Castle tries to prove to Beckett in this clip that there might really be aliens in the universe. Think she's buying it? Watch and see for yourself.
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No way alien abduction is the blame for the case on "Close Encounters of the Murderous Kind," right? Lyle Lovett guest stars on this Castle installment.
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A fowl crime takes place on this episode, as the dead body of a subway worker leads Beckett and Castle on the hunt for a missing boy. Check out the official preview now for "Murder Most Fowl."
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Castle is not a stripper! He makes this point well known in this preview for the episode "Almost Famous," which centers around the death of a stripper.
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All clues point to the notorious Triple Killer's return on this episode. Get an early look at it via the official ABC promo posted here.
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Murder, flirting and surprises?!? Sounds like fans absolutely cannot miss this episode of Castle, which centers around two bodies in one casket. Weird!
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What does Castle think when a victim is killed by a 200-year old bullet on this episode? You guessed it: time-traveling culprit!
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Beckett's former partner returns on this episode, while the action takes place at a graveyard. Watch this promo and get excited for "Under the Gun."
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A medium is found dead on this episode of Castle. In this clip, we see Rick and Beckett disagree on the merits of the victim's profession.
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Stabbed in a neck, and stuffed in a couch... that's no way to die. But that's how a psychic meets her demise, as previewed here for the episode of Castle titled "He's Dead, She's Dead."
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Castle returns with new episodes on September 20, 2010. This promo gives us a glimpse at the season premiere, which includes a stand-off between Kate and Castle.
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Castle Quotes

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

Castle

Castle: How do you know when you're in love?
Beckett: All the songs make sense.