Season 4 / Episode 21
Castle takes on Detective Ethan Slaughter (Adam Baldwin) as his partner when tension between himself and Beckett rises, and he sees a new side to police work that puts him in danger.
Genre - Drama/Police/Cop/Comedy/Procedural
Running Time - 43min
Language - en
Original Air Date - Monday 16th April 2012
Official Streaming Services
Disney Plus Canada
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