Booth and Brennan are called to investigate decomposed remains found at the Jersey Shore. The team grows fond of Booth's girlfriend, Hannah, and Angela tries to keep her pregnancy a secret.

A skull and decomposing hands are found in a dumpster, and the victim turns out to be a bounty hunter in search of Charles Braverman, a man indicted for the murder of a co-worker; meanwhile, Brennan is asked by Professor Bunsen Jude, "The Science Dude," if he can shoot an episode of his children's show from the Jeffersonian, with Brennan as his special guest.

Five months after the attack on the GBI, a figure from Will's past escapes prison, forcing him to defy orders and launch a search that rips open old wounds and threatens to destroy everything he’s fought to rebuild.

While searching for missing campers, Colter meets a retired police officer who believes a serial killer is on the loose.

Harrow is desperate to prove once and for all that Francis Chester is alive and trying to kill him, but with no proof, even his most-trusted friends and colleagues doubt Harrow's state of mind.

When a young woman appears to have literally been scared to death three days after watching a 'haunted' DVD, Castle and Beckett delve into one of their creepiest cases yet.

In the show's 100th episode, Castle finds himself in the unfortunate position of NOT being able to work a case. While he's holed up in the loft with a broken leg, Beckett goes off to investigate the death of an IRS agent without him.

When a young man who claimed to be Harrow's son turns up dead, Harrow is driven to understand the mystery and finds himself entangled in an underworld of cybercrime, crypto-piracy, and murder.

Reeling from the discovery that his son is alive, Harrow finds a welcome distraction in one of the most bizarre cases he's ever encountered: the murder of a vampire.