On Traci’s first day as a detective, all hell breaks loose when a carload of girls from a drunken bachelorette party is involved in a fatal accident. When Jerry discovers the driver of the other vehicle was murdered before the accident — and that Traci’s “rookie” handling of the car crash may have compromised the impending homicide investigation — he pulls Traci from the case and asks her and the other rookies to process the DUI. As Gail and Chris work together, interviewing the bridesmaids, Chris realizes that he still has feelings for Gail, but soon learns that new rookie Nick may be competition. Meanwhile, as Traci and Andy question the bride, they discover she is hiding a bigger secret that might be the key to solving Jerry’s homicide case… And Dov’s search for purpose in the wake of his tragic shooting leads him away from his girlfriend, Sue and towards a surprising and disturbing source of comfort — the sister of the boy he killed.