While the team investigates the murder of a toy company CEO, Castle uncovers a lead to his mysterious disappearance, launching him into a dangerous investigation of his own. (S7 Ep2)[S]
Backstabber: Hayley is being implicated in a killing and a cyber-terror attack after doing a favour for an old friend. Castle and Beckett must race against time to prove her innocence. (S8 Ep18)
Death Wish: While on a murder case Castle and Beckett search for a stolen antique lamp believed to belong to Aladdin, but the investigation rubs a Turkish smuggling ring up the wrong way. (S8 Ep17)
Heartbreaker: The murder of an armoured-car driver leads Beckett and Castle back to one of Esposito's old cases, which also happens to involve Esposito's secret jailbird ex-fiancÂee. (S8 Ep16)
Fidelis Ad Mortem: When a recruitment officer at the NYPD Academy is killed, Beckett and the team go back to their roots, visiting their old training ground to track down the killer. (S8 Ep15)
The G.D.S.: Castle returns to L.A. in search of answers about his abduction and memory loss. When he's asked to help the prestigious Greatest Detective Society, things take a deadly turn. (S8 Ep14)
And Justice For All: Castle goes undercover in a language school to investigate the murder of a student. He soon learns that language isn't the only barrier to solving this mysterious case. (S8 Ep13)
The Blame Game: Alexis and the 12th precinct must race to save Castle and Beckett after they're abducted and forced to solve a number of disturbing puzzles to slowly gain back their freedom. (S8 Ep12)