The First 48

In Birmingham, Det. Marcel Walker works to unravel the mystery of a 28-year-old man shot in his home. After calling 911 from inside the victim's home, a woman suspiciously flees the scene.

In Louisville, a 33-year-old woman collapses in the street after being stabbed multiple times. When detectives arrive at the crime scene there's a startling discovery-they're familiar with the victim.

Two separate homicides hit the small Miami community of Overtown. First, Det. Orlando Benitez and Miami homicide team 6 head out to investigate the murder of a well-known man shot to death on the street in broad daylight. After reaching out to friends and family the team has a surprising suspect?

In Louisville, rookie detective Kristen Downs is trying to untangle a love triangle that turned deadly. And in Dallas, lead detective Scott Sayers and his team must piece together what happened inside a car that left the driver dead and a second victim critically injured.

When a 21-year-old father is gunned down in a parking lot in broad daylight, Louisville Det. Keith Roberts begins investigating one of the most brazen murders he has ever seen.

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, he finds that in this case it's a tortuous route to the truth.

In Birmingham, Detective Chris Anderson and the homicide team investigate the brutal murder of a young woman shot to death in a park in the middle of the day. Detectives must first discover the identity of the victim before they can track down their suspect and learn the disturbing motive behind her murder.

In Birmingham, Det. Chris Anderson works to unravel the mystery of a motorcycle club president shot in the head after being run off the road. And Louisville Det. Corey Cadwell races against the clock to catch the killer of a mother of seven, strangled to death in her apartment.

In Louisville, a 45-year-old man is found gunned down in the snow. Det. Rick Arnold and his team track down a key witness who is forced to chose between her friendship with the suspect and her own freedom.

When a deaf father of 3 is stabbed to death in his doorway, Det. William Brown must enter the silent world of the hearing-impaired. As he closes in on the potential killers, he gets shocking information that may link his suspects to an earlier unsolved murder.

In Miami, after a celebrating his 46th birthday with family, a man is found dead on a residential sidewalk.