Series 6 Episode Guide

Follow the action from the brand new series with our quick guide and get the latest on Castle and Beckett.

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Episode 1 - Valkyrie

Beckett accepts Castle's marriage proposal, before moving to to Washington DC for her new job, where she begins training and meets her new partner, Rachel McCord (Lisa Edelstein). After 6 weeks apart, Castle surprises her at her apartment, where he causes some trouble when he attempts to help her with a classified case. Castle returns home to discover that Alexis has brought a new boyfriend, Pi, back from her trip to stay with her, but is soon taken into Federal custody, where Beckett tells him he was exposed to a deadly chemical agent and has only one day to live.
Episode 2 - Dreamworld

Continuing from the season premiere episode, Beckett races against time to find a stolen toxin capable of killing tens of thousands of people. To make matters worse, Castle was exposed, leaving him with less than 24 hours to live.
Episode 3 - Need to Know

With Beckett still in D.C., Castle and the boys investigate the murder of former child star Charlie Reynolds, who rose to fame playing the lovable nerd on an early 90s High School sitcom. But the case takes a turn for the strange when Agents Beckett and McCord arrive from Washington to take over the investigation, creating competitive tension in the precinct. But why would a washed-up actor's death warrant Federal scrutiny? Whatever the reason, Beckett and McCord aren't telling. Meanwhile, Castle has to contend with a new face at the 12th, NYPD Detective Frank "Sully" Sullivan
Episode 4 - Number One Fan

A desperate young murder suspect, Emma Briggs, takes hostages at gunpoint then mysteriously insists that she will only negotiate with one person - Richard Castle.
Episode 5 - Time will Tell

A grisly murder investigation leads Castle and Beckett to a suspect who claims he's traveled back in time to stop terrible events from unfolding, events that will change the course of human history. Is he simply a deluded killer, or is it possible that he's telling the truth.
Episode 6 - Get a Clue

Castle and Beckett investigate the bizarre murder of a young woman who was found ritually posed. When the team finds a collection of strange symbols in her apartment and the prime suspect turns out to be a mysterious monk, Castle becomes convinced they?ve stumbled onto a ?Da Vinci Code? style conspiracy. Meanwhile, Castle tries to come to grips with the fact that Alexis and Pi have moved in together.
Episode 7 - Like father, like Daughter

When a famed relationship therapist is murdered, it appears that her access to the secrets of her elite and powerful clients led to her death. But when Castle and Beckett discover the victim was in possession of a rare object worth millions of dollars, they realize that this case may be even more complicated ? and dangerous ? than they thought.
Episode 8 - Murder is Forever

When a famed relationship therapist is murdered, it appears that her access to the secrets of her elite and powerful clients led to her death. But when Castle and Beckett discover the victim was in possession of a rare object worth millions of dollars, they realize that this case may be even more complicated ? and dangerous ? than they thought.
Episode 9 - Disciple

Castle and Beckett arrive at a crime scene to discover that the female victim bears a shocking resemblance to Medical Examiner Lanie Parish. As the team tries to make sense of this mystery, they realize the killer may be targeting detectives of the 12th Precinct. Annie Wersching guest stars as Dr. Kelly Nieman, an exclusive Manhattan cosmetic surgeon who draws Castle and Beckett's interest because of her connection to the victim.
Episode 10 - The Good, the Bad and the Baby

A bleeding man stumbles into a church, but just before dying, he hands a mysterious bundle to the priest. When the bundle turns out to be a smiling baby boy, Castle and Beckett find themselves accidental nannies to the newborn. But when they determine the baby and the victim were not related, they discover that finding his rightful parents may be just as hard as solving the murder.
Episode 11 - Under Fire

When Castle and Beckett discover that the victim of a building fire was actually shot to death, they get on the trail of a serial arsonist turned murderer. Meanwhile, Ryan?s wife, Jenny, goes into labor, but disaster threatens to ruin the joyous moment.
Episode 12 - Deep Cover

The murder of a young video store clerk takes a strange turn when the team discovers his past history as a high-level hacker. But it's nothing compared to the shock Castle receives when their investigation leads them straight to his father, Jackson Hunt.
Episode 13 - Limelight

When a rising young pop star is found dead in an alley, Castle and Beckett delve into the victim?s out-of-control party lifestyle, but as they dig deeper, a shocking revelation threatens to rock their investigation.
Episode 14 - Dressed to Kill

When the assistant to Modern Fashion Magazine's dictatorial editor Matilda King is found murdered, Castle and Beckett are thrust into the glitzy, ruthless world of high fashion in their search for the killer. Meanwhile Beckett's history in the modelling world gets her access to a very special wedding surprise.
Episode 15 - Smells Like Teen Spirit

An internet video supposedly shows a teenage girl committing a murder by telekinesis. As they investigate, Castle is naturally intrigued, Beckett is naturally sceptical.
Episode 16 - Room 147

When a guilt-ridden young woman confesses to the murder of a struggling actor -knowing details only the killer could know - Beckett and Castle seem to have an open-and-shut case, until they uncover proof that their suspect couldn't possibly be the killer. When a second person confesses, equally convinced they committed the murder, the team realizes the case is far more mysterious than they thought.
Episode 17 - In the Belly of the Beast

Beckett is recruited to assist on a Narcotics investigation, but a routine mission turns deadly when an undercover operation goes array. To survive, Beckett must engage in a battle of wits against some of the most dangerous men in the New York underworld - including a powerful enemy from her past.
Episode 18 - The Way of the Ninja

When a Japanese ballet dancer is mysteriously murdered, Castle and Beckett's investigation into her secret life uncovers evidence that she was killed by a ninja, and now that ninja is coming after them.
Episode 19 - The Greater Good

Castle and Beckett investigate the murder of a Wall Street trader, but the case takes a shocking turn when the they discover the victim was an undercover informant for the U.S. Attorney's office. To complicate matters further, the U.S. attorney involved is Elizabeth Weston, Captain Gates' estranged sister.
Episode 20 - That 70s Show

When construction workers find the body of an infamous New York mobster who disappeared in the seventies, Beckett and Castle try to solve this three decade-old Mafia hit. Unfortunately, their only witness is a man who thinks it's still the 1970s, so to uncover what he knows, they must play into his delusion, and party like it's the last days of disco.
Episode 21 - Law & Boarder

When an up-and-coming professional skateboarder is gunned down by a mysterious motorcyclist, Castle and Beckett are thrust into the world of extreme sports, where the death defying stunts aren't the only thing that's dangerous.
Episode 22 - Veritas

A secret investigation conducted by Beckett related to her mother's murder goes awry when a man she has been surveilling is killed. When evidence links Beckett to the victim, she and Castle become the targets of a manhunt that puts both of them in grave danger.
Episode 23 - For Better Or Worse

Castle and Beckett's long-awaited wedding is almost here, but when a shocking surprise threatens to ruin the big day, they are sent on a wild mission filled with masked men, angry bikers and a charming good-for-nothing from Beckett's past