2009 • ABC
9.22K reviews
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Season 8 episodes (24)

1 XY
Castle and Beckett are adjusting to Beckett’s career change, when a call from a mysterious stranger sets off an explosive chain of events.
2 XX
After receiving a mysterious tip from her past, Beckett is launched into a fight for her life, with a team of mercenaries hot on her trail. As Castle investigates why his wife is on the run, Beckett must figure out who wants her dead, before they can finish the job.
3 PhDead
When the body of a local college fraternity student is found gruesomely murdered, Castle has to go undercover as a professor in order to gain access to the victim's world. However, he and Beckett soon discover that behind the fun and games of college are some darker secrets the university wants to keep hidden.
4 What Lies Beneath
When Castle's idol, a famously reclusive author, turns up dead, Castle is determined to solve his hero's murder. But as he and Beckett dig deeper, they discover that truth is stranger than fiction.
5 The Nose
When a priceless work of art is stolen and its transporter murdered, Castle and Beckett must work with the key witness to track down the painting and sniff out the killer.
6 Cool Boys
Detective Slaughter returns to enlist Castle's help in solving a high-stakes robbery case. But when a body is found linked to the crime, Slaughter becomes the number one suspect in the heist turned murder, while Castle has to determine whether he's guilty or help to prove he's innocent.
7 The Last Seduction
In order to hunt down the brutal murderer of a grifting seducer, Castle and Beckett must investigate New York's elite. Meanwhile, Castle plans to surprise Beckett on their one-year wedding anniversary.
8 Mr. and Mrs. Castle
The winter finale, Castle and Beckett investigate the murder of a cruise ship entertainer, only to find themselves trapped at sea with the killer.
9 Tone Death
When a body is found in the theater of Martha’s latest show, Castle and Beckett’s investigation leads them into the unexpectedly dangerous world of competitive a capella.
10 Witness for the Prosecution
Castle finally gets his day in court when he takes the stand as the key witness to a murder from five months ago. But when new information suddenly arises, he and Beckett must race against the clock to prevent a miscarriage of justice.
11 Dead Red
When the son of a Russian diplomat turns up murdered, Beckett and Castle find themselves in a dangerous game of international crime and punishment.
12 The Blame Game
Castle is captured and forced to work with strangers to solve deranged puzzles and mind games, while Beckett and the 12th Precinct race against time to rescue Castle and catch a killer.
13 And Justice For All
Beckett and the 12th Precinct look into the murder of an English as a Second Language student. When the victim's class won't talk to the police, Castle goes undercover as a French Canadian immigrant and learns the victim was more than he seemed.
14 The G.D.S.
Castle returns to the City of Angels in search of answers about his missing time, but things take a deadly turn when he's recruited by the legendary Greatest Detective Society to help solve a murder.
15 Fidelis Ad Mortem
When a recruit officer at the NYPD Academy is killed, Beckett and the team go back to their old training ground to investigate. Meanwhile, Castle must reckon with a decision with profound consequences for him and Beckett.
16 Heartbreaker
A clue at the scene of the death of an armored-car driver leads Beckett and Castle back to an old case solved by Esposito. Complications arise when they learn Esposito might not have been telling them everything about his relationship with the culprit.
17 Death Wish
The murder of a man connected to smuggling Turkish relics sends Castle, Beckett and the 12th Precinct on a search for a stolen antique believed to be Aladdin's lamp, in hopes that it can lead them to the killer.
18 Backstabber
After Hayley does a favor for an old friend, she finds herself implicated in a killing and cyber-terror attack. Now, Beckett and Castle must rush to solve the case and clear Hayley's name.
19 Dead Again
A mild-mannered safety inspector for the city miraculously survives a poisoning by sheer luck; but when he survives another, it's a mystery for Castle and Beckett to solve.
20 Much Ado About Murder
After a movie star turned theater actor is mysteriously killed, Castle and Beckett go backstage in search of the murderer.
21 Hell to Pay
When an axe-wielding, escaped psychiatric inmate drops dead in Castle's P.I. office, Castle and Beckett's investigation leads Castle to suspect the victim's death could be the work of the Antichrist.
22 Crossfire
With their best lead in hand, Castle and Beckett are ready to take on LokSat. But an unforeseen twist puts their case – and their lives – in jeopardy.
100 Season 8 Inside Look
Castle was finally found after missing his wedding to Beckett and disappearing for two months. With no memory of this lost time, will the truth of Castle's missing months come back to haunt the newlyweds? After passing the Captain's exam, Beckett was surprised with the news that she was also being vetted for political office. Which path will she choose, and how will New York's famous couple adapt?
101 Season 8 "Cool Boys" episode with commentary
Bonus "Cool Boys" episode with special audio commentary from Nathan Fillion and Adam Baldwin. Slaughter returns to enlist Castle's help in solving a high-stakes robbery case. But when a body is found linked to the crime, Slaughter becomes the number one suspect in the heist turned murder, while Castle has to determine whether he's guilty or help to prove he's innocent.

About this show

Castle is America's favorite crime author, and he's about to find inspiration for a new character in one of New York's finest detectives. Now his fame gives him an all-access pass to her cases and he's working her last nerve. But somehow, together, they're the perfect partners in crime.
9.22K reviews
Canyon Forkash
July 14, 2017
Castle is by far the best TV show ever to air, and here is why... It is funny and manages to have good humor, it is romantic but not cliched, every episode is unique and different and engaging to the audience, the romance is waaaaaayyyy above the standard expectations and delivers beautiful moments of friendship and love to moments where you are crying. The casting is unbelievably good and going back to what I said earlier about the episodes being engaging, Caslte and Becketts life story from Becketts mother's murder yo senator bracken to the serial killer 3XK to even Loksat is so engaging that you get attached to the main characters. You are happy with them and in sad parts through out the movie you WILL cry because of the attachment you form to Castle and Beckett. It is sad to see this show end after 8 amazing seasons... I highly recommend you buy every single season and watch it through and through you will not be disappointed! This TV show has also gotten me through very tough times in my life thanks to memorable characters and incredible stories portrayed by amazing actors and actresses!
266 people found this review helpful
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Pamela Darlene Woodward
January 4, 2020
Was going to buy an episode with John m Jackson,I know he can make any lowbrow show look great.But I didn't wnt2 waste 1.99 just incase he was in just2 scenes.Can't take a chance on THIS show. It's so t.v Land-ish. The lead man is not [email protected] &the love between professional's cop's is very Street level pedestrian.Both character's are over acting.And I can't believe he has ROOKIE.I GUESS I SHLD TRY ACTING. Sorry J.M.Jackson.Im sure it's the best episode and it's highest rating epp ever.You shine
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Anthony Naughton
March 2, 2019
ABC screwed up when they cancelled this show. It was definitely one of a kind with incredible chemistry throughout the entire cast, and every season, the storylines got more intense, more real, and so awesome to watch. I so severely miss Stana Katic and Nathan Fillion working together and their undeniable chemistry as a couple, as well as the rest of the amazing cast.
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