LOCATION: SAN ANTONIO / PHOENIX In San Antonio, TX, Detective Timm Angell and his partners find a nameless man beaten to death floating in a creek; they must race to identify the victim and find anyone who may have known him. And in Phoenix, Detec... (more)tive Mike Polk and his team painstakingly reconstruct the final hours of a man found dead hogtied in a hotel room; the case takes a dramatic turn when they learn the killers may have been captured by the hotel's surveillance cameras.