While Beckett is out of town, Castle becomes involved with Detective Slaughter in a case where a hi-tech chip has been stolen and one of Slaughter's informants is murdered.

Cast: Nathan Fillion, Stana Katic, Susan Sullivan, Jon Huertas, Seamus Dever, Tamala Jones, Molly C. Quinn, Toks Olagundoye, Adam Baldwin, Corey Reynolds, Brett DelBuono, Phil Reeves, Wade Allain-Marcus, Kerry Barker, Al Carabello