In Memphis, Sergeant Mitch Oliver and his team respond to the murder of a man shot in his car while parked at a local mini market. In order to track down their shooter, detectives must rely on witnesses who sometimes hide more than they reveal. And in Phoenix, Detective Rosenthal is investigating the case of young man shot dead and left in the parking lot of a local bar. His biggest lead is the bar's surveillance tape. It could reveal who the victim was with the night he was killed.