The Best Episodes Written By Barry Schindel

Riley and Gabriel are shocked when the identities of sleeper agents embedded in the U.S. government are revealed.

Don investigates the murders of two young women found in their cars outside their homes. Their deaths were made to look like drug overdoses, but Don realizes a serial killer is responsible. Meanwhile, Charlie is having bizarre dreams about his parents. In one dream, his deceased mother appears and tells him he has a question to ask her, but he can't imagine what it could be.

After a wealthy couple is murdered, Carrie and Al pose as a married couple to lure in the killer, who Al believes is linked to a series of unsolved homicides he once investigated.

Castle and Beckett investigate the murder of a missing plastic surgeon who is found dead in the front seat of his car after a week of being parked curbside. As they delve into the twisted world of surgery obsessed patients and secret operations, Castle experiences a fatherly rite of passage as Alexis attends her first prom. And while looking into Beckett’s past, he unearths information that could end his relationship with her forever.

When a body of a young woman is found inside the dryer at a laundry room, Castle and Beckett uncover that the young woman worked as a nanny in the upscale building. Meanwhile, as Castle works on his "Nikki Heat" novel series he watches Beckett's actions as she works the murder case.

Carrie and Al’s latest case – the murder of an Afghani cab driver – has the potential to turn into a matter of national security when it’s discovered that the victim was a government informant.

Gabriel and Riley must determine who is responsible for framing Gabriel when he is suspected of murder; Tetazoo leads a manhunt for Riley and Gabriel.

Kyle grows concerned that Frank’s rogue tactics will put a kidnapped girl’s life at even greater risk after a former member of Muammar Gaddafi’s Amazonian Guard becomes involved in the deal and ups the stakes for the girl’s return.