Find out why The Walking Dead, Search Party and more are our picks
When things get tense with Beckett, Castle decides to team up with a new partner: a tough gang-unit detective who exposes him to a seedier side of police business and puts him in risky situations.
A Los Angeles bus is attacked with sarin gas and the BAU must quickly find the culprit before a larger scale incident occurs.
Castle and Beckett look into the auction of a storage unit, which may be tied to a woman's murder, and soon they find themselves mingling with both treasure hunters and socialites.
Castle becomes the prime suspect in a ritualistic killing, and Beckett's loyalty toward him wavers in the face of mounting evidence.
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