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.
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.
In "Time Will Tell", a murder suspect claims he's a time traveler from the future who's trying to prevent disastrous events from unfolding.
"In the Belly of the Beast" an undercover mission goes array putting Beckett's life in Danger.
When a woman who looks very similar to Lanie is murdered, the team thinks the killer may be targeting members of the 12th precinct.
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.
In "Limelight," Castle and Beckett investigate the murder of a young woman.
"The Greater God" — The death of a Wall Street puts the team on a collision course with Gates' sister.
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.
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 ne'er-do-well from Beckett's past.