An FBI search of the Snells’ field yields a surprise. Playing hardball, Agent Petty questions Wilkes. The Byrdes mourn a loss.

The FBI sends out a second lure. Charlotte slips up while chatting with Wyatt. The Byrdes grow wary of Rachel, who deflects suspicion onto someone else.

When a mobster jeopardizes the casino bill, Marty enlists Buddy’s help. Wendy resorts to dirty tactics to get votes. Cade reminds Ruth of her roots.

After a key witness and a U.S. marshal are ambushed and killed, Maggie and OA must track down a man who leaked the information that led to their murders.

When a beautiful woman is found dead in an alley, all clues point to her being a victim of the notorious Triple Killer. The Triple Killer, or 3XK, terrorized New…

While investigating a shocking ritualistic murder, Beckett and her team uncover surprising evidence linking Castle to the killing. As the evidence against him mounts, loyalties are tested. And when surprising…

When clues in a murder implicate Castle and Beckett’s nemesis, Dr. Kelly Nieman, Castle is called in to consult on the case.