Dallas detectives hope that video footage can identify the person who murdered a young father; a Cleveland mother of six is shot and killed on her birthday.

A beloved Cleveland man is murdered in his own home; a robbery in Dallas leaves one person dead and another severely wounded.

A Cleveland man is shot multiple times and left to die in an alley; police detectives risk their lives to untangle the web of lies surrounding the investigation.

New Orleans police detectives piece together the last hours in the life of a mother of five, who was found bound and executed in an empty lot.

The murder of a Cleveland store clerk is caught on tape; police detectives learn that the suspects in the crime have a violent history.

A police detective's first case as a lead involves hunting one of Ohio's most dangerous criminals; a New Orleans neighborhood remains silent following the daytime shooting of an innocent man.

A New Orleans police detective hunts for the killers of a recent high-school graduate; an unidentified woman is found shot and dumped on the side of a Dallas highway.

The brutal slayings of a mother and her two children send a New Orleans detective on the hunt for a suspect who may have been acquainted with the victims.

Dallas detectives hunt a car thief who fatally shot a man and stole his vehicle; detectives search for a witness that can identify the killer of a Cleveland man.

Detectives in Florida's Broward County investigate a fatal highway shooting; the execution of three friends outside a Dallas nightclub is caught on video.

A young father is ambushed and killed at a Dallas gas station; detectives suspect an inside job in the case of a Miami rapper who was gunned down at his car wash.

When a bullied teen is gunned down outside a public library, Cleveland Detectives are shocked to discover the motive behind this senseless attack.

In Cleveland, a young father is executed in his home and his family is terrorized by masked gunmen. Detectives believe the victim's friend holds the key to finding the killers, but he's nowhere to be found. Then, in Dallas, an innocent teen is gunned down with an assault rifle, putting detectives on the hunt for a dangerous killer.

Homicide detectives in a new city--New Orleans. First, a young man is executed, and detectives have nothing to go on, not even the victim's name. But the key to finding his killer may be right in front of them. Then, while walking home from work, a beloved young woman is gunned down in the street, leaving a community devastated and detectives on a mission to find her killers.

Dallas Detective Dwayne Thompson hunts for a band of carjacking killers that are terrorizing a neighborhood. And in Cleveland, an argument among friends spins out of control when one of them makes a deadly decision.

Dallas Detective Dwayne Thompson hunts for a band of carjacking killers that are terrorizing a neighborhood. And in Cleveland, an argument among friends spins out of control when one of them makes a deadly decision.

In Rochester, a man from a neighboring suburb is found shot to death on a city street. The Major Crimes Unit tries to piece together the last hours of the victim's life to discover what may have brought him there, and find that his wife may hold the key to solving the murder.

In Cleveland, for Detectives Kathleen Carlin and Tim Entenok, friends are the key to solving the murder of a father shot in the back. And in Dallas, can a surprising lead help Detective Brian Tabor catch up to the killer of an elderly man?

In Cleveland, an innocent man is gunned down in a gang war and Detectives race to find his killers before any more blood is shed. Then, in Dallas, a father is murdered close to home and detectives need his neighbors to give them a lead.

In Cleveland, a young mother walking alone to work is viscously murdered and dumped in an abandoned house. As the community reels in shock at the horrific crime, Detectives Nate Sowa and Ray Diaz make a surprising discovery about the killer.

In Dallas, an elderly woman is beaten and strangled in her home. When the victim's missing bank card starts being used detectives follow the trail hoping it will lead to her killer.

In Broward County, when a migrant worker is robbed and beaten to death, Dets. Valerian Perez and Kevin Forsberg must track down a vicious predator before he strikes again. Then, in Cleveland, a man is shot dead in broad daylight at a carwash.

In Cleveland, when a young mother of three is gunned down in front her home, a neighborhood is paralyzed with fear by a suspect who has a reputation for killing at the slightest provocation.

A police detective hopes to locate the killers of two Miami men before the bloody turf war claims another victim.

In Cleveland a man is gunned down defending his home on New Year's Eve. With no eyewitnesses, Det. Melvin Smith must rely on DNA evidence to track down the killers.

In Harris County, a young woman set on fire clings to life as deputies race to find who left her for dead. In Cleveland, when a teenager is shot down in the street, detectives discover his best friends may have something to do with the murder.

In Cleveland, a man is shot dead in an empty courtyard. A mysterious 911 call leads Detectives Ignatius Sowa and Raymond Diaz on the hunt for an elusive killer. Then in Dallas, a 72-year-old grandmother is found beaten to death inside her home.

In Dallas, an unidentified girl is found brutally shot in a field. Detectives Scott Sayers and Esteban Montenegro discover that she may have been killed for her silence. Then in Cleveland, a young father is shot in the head trying to break up a fight.

In Miami, a family is shattered when two teenage brothers are gunned down in their own backyard. Two surviving friends point Detective TC Cepero and his team in the direction of two desperate and dangerous gunmen on the run.

In Dallas, when a good Samaritan is gunned down trying to protect his friends, detectives must unravel a tangled web of bad tips and lies in their hunt for the killer.

In Dallas a young father is shot in the back, but no one wants to talk. Then in Cleveland a brazen corner store stickup leaves an innocent clerk dead.

A father of five found stabbed over 50 times shocks friends and family. Cleveland Homicide follows a bizarre trail of evidence that takes the case someplace they least expected.

In Dallas, an innocent man gunned down in his car leads detective on a manhunt for a killer on shooting spree. As the investigation unfolds, witnesses reveal the brutality of the shooter. Detectives Tommy Raley and Michael Yeric must track down their killer before he strikes again. 

In Harris County, a young father is carjacked and murdered outside his home. To find the killers, the homicide team needs to find the victim's car. And in Miami, a local musician is gunned down in the street and the hunt for answers leads close to home.

A young Dallas couple murdered in cold blood on their doorstep sends detectives on a manhunt across three states. Then, Cleveland homicide finds a man shot dead in his own backyard and learns the killer might be closer than they think.

In Cleveland, a 14-year-old girl is killed at her birthday party when gunmen open fire on a crowd. With multiple shooters to track down, the homicide team races the clock to identify which people at the party were the killers.