In Dallas, a young father is ambushed at a gas station and Detective Steve David needs to track down the killers, before the trail goes cold.

In Birmingham, when motorists discover a decomposed body on the side of the interstate, a missing-person case turns into a homicide investigation. As lead Det. Jerry Williams searches for the friend who filed the missing-person report.

In Birmingham, when motorists discover a decomposed body on the side of the interstate, a missing-person case turns into a homicide investigation. As lead Det. Jerry Williams searches for the friend who filed the missing-person report.

In New Orleans, a late night pizza delivery turns deadly. Then in Harris County, a young father shot down in a turf war sends cops on the hunt for a killer caught on video.

In New Orleans, a late night pizza delivery turns deadly. Then in Harris County, a young father shot down in a turf war sends cops on the hunt for a killer caught on video.

In Miami, Detective Fernando Bosch investigates a murder that takes him across state lines.

In Miami, Detective Fernando Bosch investigates a murder that takes him across state lines.

When a man is shot dead inside a boarding home, Atlanta detectives try to drum up a lead from a roommate involved with the suspect.

When a man is shot dead inside a boarding home, Atlanta detectives try to drum up a lead from a roommate involved with the suspect.

In Cleveland, when a teenager is shot down in the street, detectives discover his best friends may have something to do with the murder.

When a homeless man is gunned down on the sidewalk, Mobile detectives discover a petty motive.

In Tulsa, a vicious hammer attack leaves two young men clinging to life. Detectives race to catch the suspect before he strikes again. In Atlanta, detectives discover a selfless act performed by their victim led to his murder.

In Tulsa, a vicious hammer attack leaves two young men clinging to life. Detectives race to catch the suspect before he strikes again. In Atlanta, detectives discover a selfless act performed by their victim led to his murder.

In Tulsa, a running street battle leaves a young father dead. And in Atlanta, a man defending his mother's honor gets shot in the back.

When a suburban teenager is found dead in a robbery gone bad, Minneapolis Detective Emily Dunphy must find out which of the victim's friends may have double-crossed him.

When a suburban teenager is found dead in a robbery gone bad, Minneapolis Detective Emily Dunphy must find out which of the victim's friends may have double-crossed him.

When one of their own is executed in cold blood, detectives discover he may not be the killer's first victim. Can New Orleans homicide stop a suspect who targets the law before more blood is shed?

When a shootout in an Atlanta rap studio leaves two men dead, detectives discover a vengeful motive.

In Tulsa, a man is gunned down in broad daylight, but the truth may be more than it appears. In New Orleans, a man is shot 8 times in his own home when a text message falls into the hands of a killer.

When a retired pre-school teacher is slain by a stray bullet, Atlanta detectives need a witness to break the code of silence.

A night out leaves an innocent man dead. When solid leads hit dead ends, detectives discover a motive they never expected.

In Atlanta, when a young man is shot and left to die in the bushes, a mysterious white Town Car will be the key to Detective Calvin Thomas's investigation.

In Tulsa, a young woman goes on the run when her boyfriend is murdered. In Atlanta, an army veteran is gunned down after helping a homeless man.

When a father is gunned down protecting his wife in Kansas City, Detectives hope his ex-wife knows who wanted him dead.