A 14-year-old Cleveland girl dies at her own birthday party when gunmen fire on a crowd; homicide detectives race to track down multiple shooters in the crime.

Police detectives conduct a three-state manhunt as they investigate the slaying of a young Dallas couple; a Cleveland man is found shot to death in his own backyard.

A violent carjacking leads to the murder of a young father; a Miami musician is shot down in the street.

Dallas detectives launch a manhunt for the person who gunned down an innocent man in his car.

Cleveland homicide detectives follow a bizarre trail of evidence in the case of a father of five who was stabbed over 50 times.

In Dallas a young father is shot in the back, but no one wants to talk.

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 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. But Cepero will need the community's help to get the brazen killers off the street.

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. Without any leads, Detectives Ignatius Sowa and Raymond Diaz must rely on an outraged community to help track down his killers.

Police detectives search for an elusive killer who shot a man in a Cleveland courtyard; a 72-year-old grandmother is beaten to death in her Dallas home.

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 Harris County, a young woman set on fire clings to life as deputies race to find who left her for dead.

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. And in Broward County, Florida, when an elderly man is found dead in his apartment, Det. John Curcio's hunt for the suspects leads to a surprising discovery.

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

A young mother of three is gunned down in front of her Cleveland home; a birthday party celebration in Florida turns deadly.

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, and Dets. Lem Griffin and Art Echols fear their case will go cold when none of the witnesses will talk.

The use of a stolen bank card leads Dallas detectives toward the killer of an elderly woman; a teenage honors student is found shot in her own backyard.

A young mother is viscously murdered and dumped in an abandoned house. Detectives Nate Sowa and Ray Diaz make a surprising discovery about the killer.

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

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 stabbed to death in his home?

A man is shot to death in a nearby suburb, and police learn that his wife may hold the key to solving the crime.

A group of carjacking killers terrorizes a Dallas neighborhood; tragedy results when an argument between friends gets out of control.

A Dallas police detective must unravel a robbery plot when the body of an expectant father is found bound and burned in a creek bed.

New Orleans detectives have little to go on in the hunt for a killer; a young woman is gunned down in the street while walking home from work.

Masked gunmen terrorize a Cleveland family and execute the young patriarch; Dallas detectives hunt for a killer who gunned down an innocent teen with an assault rifle.

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