Banks and Delahoy investigate a store selling murder weapons and instructions on how to get rid of the body. Nixon asks Casey to help get a client's son out of trouble on a bogus charge.
Watch Now:AmazoniTunesWhile investigating the shooting death of her ex-partner in New York, Beckett comes to believe the suspect has fled to Los Angeles. Against orders, she travels to L.A., going renegade to track down the killer, with Castle unexpectedly along for the ride. As they dig deeper into the motives, they uncover a trail that leads from a rooftop pool in Hollywood to the sandy beach of Santa Monica. Along the way, they visit the set of the "Heat Wave" movie (based on Castle's book) and enlist the cast to help break the case. But as they get closer to apprehending the killer, Castle begins to wonder whether Beckett is out for justice or revenge.
Watch Now:AmazoniTunesNolan’s discovery goes much deeper than he expected and could put his life and career in jeopardy.
Watch Now:AmazonOfficer Nolan mildly injures himself while chasing down a shoplifter and the local DA wants to charge the suspect with assault despite Nolan’s wishes. Meanwhile, Lucy goes undercover, Lopez’s wedding venue is seized by the FBI, and Nolan meets his new neighbor.
Watch Now:AmazoniTunesAs the rookies prepare for a big exam to see who moves on to the next stage of training, Officer Nolan and Officer Bishop are called to the scene of a murder and learn that the victim may be tied to a potential terrorist attack on the city of Los Angeles.
Watch Now:AmazoniTunesWith tensions rising between Castle and Beckett, Castle finds himself a new partner -- Detective Ethan Slaughter, a tough and colorful cop from the city's gang unit. But Castle gets more than he bargained for when Slaughter shows him a grittier side of police work that puts Castle in the line of fire like never before.
Watch Now:AmazoniTunesNearing the end of his training, Nolan now faces his biggest challenge as a police officer yet when he must come to terms with the choices he has made in pursuit of the truth.
Watch Now:AmazoniTunesNolan and team are charged with escorting a notorious female serial killer to the graves of her previously unrecovered victims. However, when they arrive, they unearth even more than they expected. Chen meets a seemingly perfect man who sparks her interest, and Lopez worries about Wesley as his PTSD continues to increase.
Watch Now:AmazonTalia forces Nolan to confront his personal moral instincts in order to be a good cop after he encounters a kidnapping victim. Meanwhile, Lucy is temporarily placed with a new training officer who tests her patience, and Jackson must confront his failures head-on if he wants to be an officer.
Watch Now:AmazoniTunesNolan’s relationship with his first confidential informant is tested when he discovers her back on the street dealing drugs. Lucy’s fear of dating following her abduction and her intrusion into Jackson’s relationship is beginning to threaten their friendship.
Watch Now:AmazonWhen Garza’s character comes into question, Simone and team develop their own covert operation to support their boss.
Watch Now:AmazoniTunesOfficer Bradford’s wife is found shot but alive, and he vows to track down the man responsible. Officer Nolan must protect his home and the truth after a home invasion attack.
Watch Now:AmazoniTunesOfficer John Nolan’s is once again face-to-face with serial killer Rosalind, and she wants him to know she’s not done with him yet. Meanwhile, officers Bradford and Chen work undercover with Detective Lopez and the Las Vegas Police Department to arrest leaders of a major criminal enterprise.
Watch Now:AmazonDanger is ever-present as the officers of the Mid-Wilshire precinct grapple with the aftermath of a plotted attack on the city of Los Angeles, leaving Officer Bradford fighting for his life. Flash forward two weeks and the rookies receive the shocking results of their latest training exam, leaving one officer questioning what the future holds. Meanwhile, tension develops at home as Nolan and Lopez advance in their relationships with Jessica and Wesley.
Watch Now:AmazonA sniper on a killing spree is terrorizing New York City. With the clock ticking down to the next murder and nothing to go on except a killer with no apparent motive but to instill terror, this could prove the team's toughest case yet. The hunt is made even more complicated when Beckett begins to experience increasingly strong moments of PTSD - moments she tries hard to hide from Castle and the detectives.
Watch Now:AmazoniTunesWhen an Arctic explorer is killed during a polar expedition, the mysterious circumstances of his death take Castle and Beckett from the penthouses of Park Avenue to the halls of the CIA. But Castle's delight at the case's many twists and turns soon turns to frustration as he realizes that their elusive killer might just be fooling them all.
Watch Now:AmazoniTunesDesperate to break free from his connection to Elijah, Wesley tries to plant a listening device in his office to incriminate him. Meanwhile, Officer Bradford and his sister, Genny, learn an unsettling truth about their father.
Watch Now:AmazonThe brutal murder of a lottery winner has Castle and Beckett up to their eyeballs in suspects, envious and angered by the victim's sudden move from the poorhouse to the penthouse. As the precinct buzzes with fantasies of what our cops would do if they won the lottery, Martha struggles with the reality of such a decision when she suddenly inherits money she feels she doesn't deserve.
Watch Now:AmazoniTunesWith the latest case of a murdered bail bondsman, Beckett discovers that Castle's wild imagination and theories may be on the mark. Beckett's ex-partner makes a surprise arrival and Castle is forced to watch the two reminisce and engage in a little romance.
Watch Now:AmazoniTunesThe FBI becomes more aware of Ryan's undercover agenda as he searches for a link between the tragedies in New York and the remaining members of the Havenport cult; a shocking event leads to Joe starting a new plan.
Watch Now:AmazoniTunesThe investigation into the shocking death of a museum curator, crushed by a falling gargoyle, takes a bizarre turn when Castle and Beckett learn that he isn’t the first member of a recent archeological expedition to die. It turns out there was a legend inscribed over the burial chamber the team unearthed warning that "all who gaze upon the face of the mummy are doomed." Was the curator just the latest victim of "The Mummy’s Curse?" And if so, what does that mean for Castle, who snuck a peek at the mummy when no one was looking?
Watch Now:iTunesOfficer John Nolan and the team investigate the unexpected death of a suspect in police custody. Their search also uncovers a very delicate loose end that could jeopardize Officer Celina Juarez’s career. Meanwhile, Sergeant Grey and his wife, Luna, go to New York to visit their daughter, Dominique, only to realize she never made it home from the night before.
Watch Now:AmazonA massive earthquake rocks the city and throws everyone’s patrols and its citizens into chaos. Agent Russo recommends Officer Nolan for a protective detail of Brad Hayes, a man whose dealings have put a target on his head.
Watch Now:AmazoniTunesAfter passing the Captain's exam last season, Beckett was surprised with an offer to run for State Senate. In the action packed season premiere, Castle and Beckett are adjusting to Beckett's career change, when a call from a mysterious stranger sets off an explosive chain of events. There are two sides to every story, and this unique two-parter will explore the same story from each of their perspectives, first from Castle's side as he searches for Beckett.
Watch Now:iTunesNolan’s trust is tested when he tries to help the previous owner of his home reconnect with his family. Harper has finally earned an overnight visit with her daughter that is put into jeopardy when her past undercover life resurfaces again.
Watch Now:AmazonNolan is given some life-changing news and invites Grace over for a homecooked meal in his newly remodeled kitchen. Each unit is tasked with following up on dormant cases in the hopes they can uncover new leads.
Watch Now:AmazonFrank and Holly's worlds collide when several of her call girls go missing, leading the SIS to investigate an eccentric, reclusive Hollywood producer.
Watch Now:AmazoniTunesStarting over isn’t easy, especially for small-town guy John Nolan who, after a life-altering incident, is pursuing his dream of being a police officer.
Watch Now:AmazoniTunesCastle and Beckett are thrust into the world of ex-cons and escorts. Meanwhile, Alexis has a private chat with Beckett about something that she's keeping from her father.
Watch Now:iTunesNolan and the entire team race against the clock to locate Lopez after she is kidnapped on her wedding day, not only to save her life but her unborn child’s.
Watch Now:AmazonOfficer Nolan and the LA division of the FBI enlist the help of FBI trainee Simone Clark when one of her former students is suspected of terrorism following an explosion at a local power station.
Watch Now:AmazonA murder victim's rabid neighbor bites Tommy, and after another rabies fatality, Megan calls on the new health commissioner to aid in their investigation.
Watch Now:AmazonThe team alongside the LA Division of the FBI are in a race to stop bombs that have been scattered throughout the city by a suspected terrorist. The joint task force is suspicious of the CIA’s involvement in the situation.
Watch Now:AmazonOfficer John Nolan is forced to spend a week in solitary confinement in a quiet border town with a young local officer who is in need of some training. Meanwhile, Sergeant Bradford and Officer Chen discover that looks are deceiving and go undercover together in a possible drug trafficking case.
Watch Now:AmazonCastle 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.
Watch Now:iTunesJoe Carroll is on death row and his followers are no more, but a fresh series of brutal killings reopens old wounds for Ryan Hardy and a terrifying new nemesis awaits him and the team.
Watch Now:AmazoniTunesIn part 2 of the premiere, Beckett's side of her abrupt disappearance is revealed. 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. While Castle investigates why his wife is on the run, Beckett must figure out who wants her dead, before they can finish the job.
Watch Now:iTunesFresh out of the FBI Academy, Simone Clark arrives in Los Angeles and has her sights set on joining Matthew Garza’s newly formed special unit as they investigate the murder of a federal engineer. Garza’s squad includes Carter Hope, a promotion-hungry traditionalist, Laura Stenson, a talented agent in desperate need of a second chance, and Brendon Acres, a former actor who graduated from Quantico with Simone. On the home front, Simone and Cutty’s father-daughter relationship is put to the test as their opposing opinions about law enforcement come to a head.
Watch Now:AmazoniTunesDetective 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.
Watch Now:iTunesWith 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.
Watch Now:iTunesThe team gets the true crime docuseries treatment when they analyze a recent case featuring a former child actor whose adult life has garnered him a cult following.
Watch Now:AmazoniTunes