Julian Acosta

While the police suspect a drug dealer on trial is behind the murders of the State's witness in his case, as well as his girlfriend, Patrick Jane sees a different motive for the crime - as well as a different suspect.

Officer Nolan and the entire team are in a desperate search to rescue Officer Chen after her abduction. Officer Lopez discovers Wesley unconscious from a dangerous cocktail of alcohol and pills.

Officer Nolan and team are charged with escorting a notorious female serial killer to the graves of her victims. Officer Chen meets a seemingly perfect man who sparks her interest and Officer Lopez worries about Wesley.

An FBI agent takes over the case when a two-year-old girl is kidnapped and a hefty ransom demand made. Despite instructions from Beckett to stay away from the investigation, Castle gets involved when he finds out that the FBI agent is her ex-boyfriend.

JD and Kim start contemplating about their future and their baby's future, and Turk rushes Carla to the hospital after she goes into labour.

After communications with the president's plane are lost, Elizabeth is sworn in as the acting president. Henry is asked to recruit one of his students for the NSA.