Watch Castle Season 8 Online
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On Castle Season 8 Episode 22, Castle and Beckett find their lives in jeopardy as they attempt to take down LokSat for good on the series finale.
On Castle Season 8 Episode 21, an axe-wielding, escaped inmate turns up dead and theinvestigation leads Castle to suspect it could be the work of the Antichrist.
On Castle Season 8 Episode 20, when a movie star turned theater actor is killed, Castle and Beckett learn he had a nefarious reason for choosing Shakespeare.
On Castle Season 8 Episode 19, the team at the 12th tries to solve the case when a safety inspector mysteriously survives not one, but two attempts on his life.
On Castle Season 8 Episode 18, Castle and Beckett rush to clear Hayley's name when she is implicated in a killing and cyber-terror attack after helping a friend.
On Castle Season 8 Episode 17, when a man who smuggled Turkish relics is killed, the team at the 12th search for a stolen antique believed to be Aladdin’s lamp.
On Castle Season 8 Episode 16, Esposito's past comes back to haunt him when an old romance may be involved with the death of an armored-car driver.
On Castle Season 8 Episode 15, when an NYPD recruit is murdered, the team heads back to the academy to investigate and Castle struggles with a major decision.
On Castle Season 8 Episode 14, when Castle heads to L.A. to solve his disappearance, he ends up being recruited by the Greatest Detective Society to solve a case.
On Castle Season 8 Episode 13, Castle goes undercover when an English as a Second Language student is murdered and his class won't talk to the police.
On Castle Season 8 Episode 12, Beckett and the 12th race to save Rick when he is forced to work with strangers to solve deranged puzzles involving mind games.
On Castle Season 8 Episode 11, Beckett and Castle end up in a dangerous game of international crime when the son of a Russian diplomat turns up dead.
On Castle Season 8 Episode 10, when Castle testifies as a key witness to a murder, he and Kate end up racing to prevent a miscarriage of justice.
On Castle Season 8 Episode 9, Castle And Beckett investigate the competitive world of a capella when a body is found in the theater of Martha’s latest show.
On Castle Season 8 Episode 8, Castle and Beckett end up trapped at sea on a ship with a killer when they investigate a cruise ship entertainer's murder.
On Castle Season 8 Episode 7, as Castle and Beckett's first wedding anniversary nears they must solve a brutal murder and help save Espo and Ryan's partnership.
On Castle Season 8 Episode 6, with Beckett away, Castle must help figure out if Det. Slaughter is guilty or innocent when a robbery case turns into a murder.
On Castle Season 8 Episode 5, Castle and Beckett work with a witness with a heightened sense of smell to catch a killer who stole a priceless work of art.
On Castle Season 8 Episode 4, when Castle discovers that his idol, a reclusive author has turned up dead, he and Beckett investigate but uncover strange secrets.
Castle goes undercover as a college professor on Castle Season 8 Episode 3 and learns some dark secrets but can he win back Beckett in the process?
On Castle Season 8 Episode 2, Beckett's side of her disappearance is revealed as she gets a mysterious tip from her past and must figure out who wants her dead.
While adjusting to Beckett’s career change, a call from a mysterious stranger sets off an explosive chain of events for Rick and Kate on Castle Season 8 Episode 1.