S4, E8: After a hairstylist for a television show is murdered, Brenda and the squad must wade through a history of domestic violence and secret addresses to find the murderer. Brenda also has to deal with her parents, Willie Ray and Clay (recurring guest stars FRANCES STERNHAGEN and BARRY CORBIN),who have decided to pay a surprise visit in the RV on their way to Alaska. Brenda's father drops blatant hints wondering when they can expect Brenda and Fritz to finally tie the knot.