After being forbidden to work with Kate Beckett or the 12th Precinct, Castle obtains a P.I. license and shows up unannounced at Beckett’s crime scene, hoping to investigate alongside her as a private eye. But things don’t go as Castle had planned.
Photo Previews: A mysterious recurring dream drives Castle and Beckett to seek answers about the two-month period when he went missing. But their search for the truth has deadly consequences.
In the May 2 installment of ABC's Castle, the 12th investigates the murder of a movie actor who tries his hand at performing on the stage. Jewel Staite from Firefly plays the play's director.
When an ER physician is gunned down in the street, Castle and Beckett soon discover that the victim was a mob doctor to a Mafia family run by an old friend of Castle's.
A bleeding man stumbles into a church, but just before dying, he hands a mysterious bundle to the priest.
When Castle and Beckett learn that a murder victim may have been poisoned at an Old West-style resort, they visit the resort posing as newlyweds to uncover the truth.
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. “High School Musical”’s Corbin Bleu guest stars.
"Need to Know" - Castle and the boys investigate the murder of former child star Charlie Reynolds. But the case takes a turn for the strange when Agents Beckett and McCord arrive from Washington to take over the investigation.
Beckett and the 12th Precinct look into the murder of an English as a Second Langue student. But when the victim’s class won’t talk to the police, Castle goes undercover as a French Canadian immigrant and learns that the victim was more than he seemed.
When a web celebrity is murdered, Castle and Beckett explore the flashy world of internet fame. But when the killer posts pictures from the crime scene on a photo-sharing site, they realize they are up against a social media sociopath who may strike again.