The First 48

In Harris County, Dep. Abraham Alanis and his team investigate the murder of a man, married with four young children, who was found robbed and shot to death outside an abandoned house.

In Detroit, Sergeant Matthew Gnatek and Officer Nancy Foster are investigating the murder of a soon-to-be father, found shot to death in a deserted field during a snowstorm.

In Louisville rookie homicide detective Collin King is assigned his first case when an unidentified man is found dead near a railroad track.

In Miami, Detective Anthony Reyes and the homicide team are investigating the murder of a man found brutally beaten to death below a major interstate.

In Miami, Det. Frank Sanchez responds to the murder of a retired Miami Police captain, shot in broad daylight at a marina on the Miami River.

When fire fighters in Detroit respond to a house fire and discover a 63-year-old woman stabbed and bound, Sergeant Kenny Gardner and Investigator Barbara Simon must investigate the brutal murder.

In Harris County, TX a young man is days away from testifying as a witness in an aggravated assault case when he is suddenly gunned down near his home.

The Miami homicide team is investigating the murder of a man found naked, tied up, and floating in Biscayne Bay.

In Detroit, Sgt. Ernest Wilson and his team investigate a double-homicide.

In Charlotte, when a store clerk and father of three young children is shot in a robbery by a masked man, lead Detective David Osorio and his team interview witnesses and find that no one knows the shooter.

In Charlotte, rookie homicide Det. Brian Whitworth is assigned his first case when a woman is discovered on her bedroom floor, stabbed to death.

In Louisville, Det. Kristen Downs is at a dead end in her search for the killer of a wheelchair bound man, until she discovers the victim's sons might be the key to the case.

After a year with the gang unit, Detective Kevin Ruggiero returns to Miami Homicide, investigating a drive-by shooting that left two men dead.

When Louisville Detectives Mickey Cohn and Jon Lesher discover that their two murder victims have matching tattoos, they suspect the murders might be related.

In Las Vegas, NV, Detective Jimmy Vaccaro and his team are called out at midnight to an empty desert highway, where a man's been shot dead in the middle of the road. From the victim's cellphone, they quickly get a lead.

When a fight at a Charlotte nightclub escalates to gunfire, an innocent bystander is killed in the crossfire. Detective Terry Brandon and his team are forced to pit brother against brother to solve the murder.