Ashes to Ashes

S2, E1: Detectives Nate Sowa and Ray Diaz take on the investigation of a missing person case that may turn out to be a homicide. A witness reported seeing a 25-year-old male brutally beaten, and that same male has not been seen for days. Without a body, how do you prove murder? Two brothers are suspected of the beating, but Sowa and Diaz must determine if they committed a murder--so it's a race against time to find the victim alive, or find proof of his death. It will take cutting edge forensics to solve this case, and if the evidence doesn't add up, someone may be getting away with murder.