Patrick Cassidy

Castle and Beckett must investigate a mysterious case from 1947 in order to solve the present-day murder of a treasure hunter.

Jim does more harm than good when he stands up to Dana's boss, and Andy has trouble making arrangements for his birthday party.

When the team stumble on a murder victim while out on patrol with the Las Vegas police's mobile crime unit, the suspects include several street criminals whom they have already arrested. The case becomes personal for Brass when it turns up some information on his daughter.

A fire sends two foster children and a firefighter to the ER. After treating one of the children, Abby suspects the little girl is suffering from a degenerative eye disorder. At the end of the day Abby decides to come clean with her colleagues about where she's been since Luka's father passed away.

The orthopedic doctors take on the trauma doctors in a game of hockey. Meanwhile, Bettina wants to take her relationship with Pratt to the next level but Pratt remains hesitant, Gates and Sam disagree over how to treat a young patient, and Julia's attempt to provide spiritual guidance to a prison doctor seriously backfires, leaving her devastated.