Detectives investigate the discovery of a murder victim along the highway and the murder of a Mexican migrant worker.

Detective Ervens Ford and his team learn the suspected killer of a young man shot to death in Little Haiti is a member of a notorious gang. The team must hunt him down before he flees the country; when two teenagers are brutally gunned down in the Pork-n-Beans project, Sergeant Pepi Granado and Detective Freddy Ponce learn there's a witness who saw the murders go down.

When Phoenix Detective Alex Femenia is called to a scene where three young people are found dead in their home, it is his job to cull through the evidence and determine what happened at this bloody scene. As night falls, the detective waits for the Medical Examiner to arrive to determine if this is the scene of a triple murder or a murder suicide. In Memphis, TN Sergeant Tony Mullins and Lead Investigator Sgt. aroline Mason get their first call of the week. A woman calls 911 to report a dead body laying on the front lawn of a home. When the detectives arrive on the scene the mother of the victim is there and gives the Sgt's a clue, she tells them the last time she saw her son alive, he was with his girlfriend. With the clock ticking it is now up to the Sergeants to locate the girlfriend and find out exactly what she knows.