In the season finale, the team, although torn apart and uncertain as to their future, must come together to save Walter's life as his car hangs off the side of a cliff.
When Castle takes matters into his own hands, after the FBI fail to get Alexis back, he discovers that the kidnapping may be part of something more ominous.
While investigating a murder, Castle and Beckett find a link to a kidnapping plot. FBI Agent Harris is called in to help find the kidnappers.
After Martin is mistaken for a criminal, he becomes involved with a heist crew to win back the job of an innocent dock worker. Meanwhile, an Israeli boy and a Palestinian girl struggle to maintain their relationship. Martin and Abigail make peace regarding Jake's custody and form an alliance to protect him from possible harm as Clea discovers that Sheri is testing Jake on behalf of a mysterious entity.moreless