1 - Murder in the Family

Three cases from The First 48 that feature families enveloped in personal tragedies. In New Orleans, two cousins have a deadly fight, in Memphis, a young couple disappear and their uncle's home holds a clue, and in Dallas, a woman brutally turns on her sister-in-law.

2 - Interrogations: Lies and Tells

Three different approaches to suspect interviews are featured from The First 48. First, detectives in Cleveland sit down with friends and the suspect in the murder of a young mother, then the boyfriend of a missing woman is questioned in Harris County with hopes of finding the woman alive, and detectives in Memphis change strategy in an effort to get their murder suspect to talk.

3 - Heat of the Moment 3

Three cases from The First 48 where things get out of control in a heated moment. In Birmingham, a man's body is found burned after an argument with a friend; in New Orleans, a man with cancer gets a ride home that ends in his murder; and in Tulsa, a man visiting his son is killed in a jealous rage.

4 - Forensics Don't Lie

A look back at three cases from The First 48 where forensics played a pivotal role in solving homicides. In Harris County, detectives rely on fingerprints to solve a father's carjacking and murder. In Charlotte, NC, a slain woman's family finds justice through DNA; and in Minneapolis, ballistics is the key to solving a man shot during a street fight.

5 - No Witness

When there are no witnesses, homicide detectives face an uphill climb to find the truth. First, detectives in Cincinnati come across a bizarre homicide at an apartment fire. Then, in Memphis, solving a preacher’s murder hinges on a single fingerprint. And a Tulsa woman found dead leaves police a clue that might solve her own murder.

6 - Unfinished Business

Three cases from The First 48 that were driven by revenge and resentment. In Mobile, a man is executed in a parking lot months after an altercation; in Harris County, TX, pressing charges in an attempted robbery leads to a man’s brutal murder; and in Tulsa, a gang member goes on the hunt after being called a name.

7 - Deadly Plans

Three stories from The First 48 where a plan proved deadly for unwitting victims. In Dallas, a man is lured to his death in an abandoned apartment; a homeless man in Miami is brutally beaten with a rock; and a Tulsa woman’s plan to help her sister goes horribly wrong.

8 - Fatal Friendship 2

Three stories from The First 48 where a plan proved deadly for unwitting victims. In Dallas, a man is lured to his death in an abandoned apartment; a homeless man in Miami is brutally beaten with a rock; and a Tulsa woman’s plan to help her sister goes horribly wrong.

9 - Wrong Place, Wrong Time 3

A look back at three First 48 cases where the victims were in the wrong place at the wrong time. In Tulsa, what appears to be a case of road rage turns out to be something else entirely. Then, a man is stabbed to death in his car and Tulsa detectives have a hard time believing his friend’s story of what happened. And investigators in Harris County must get to the bottom of a car wash shooting that leaves a man dead.

10 - The Case That Haunts Me 5

In Memphis, a woman is dragged to her death in broad daylight; in Harris County, a young mother is found with her throat slashed; in Miami, an ongoing battle between two gangs feels impossible to curtail as the body count rises.

11 - Rookies 2

Rookie detectives lead their first investigations in three cases from "The First 48" archive; in Louisville, Ky., a rookie leans on video surveillance to find a convenience store killer.

12 - Shocking Motives

Homicide detectives attempt to understand puzzling motives for murder after a woman is attacked as payback for someone else, a barber is shot by someone who appears to be a friend and a man is targeted for defending a friend.

13 - The Pros

Veteran homicide detectives search for answers after a woman is killed in her Dallas home, a reluctant witness weighs whether to name the shooter in a homicide case in Memphis and a man gets shot in his own doorway in Dallas.

14 - In the Name of Love

Examines three cases where homicides were committed in the name of love. First, in Dallas, a couple is shot to death on their doorstep, and detectives have to track down the killer as he goes on a multi-state crime spree. Then, in Louisville, a hearing-impaired man is stabbed in his doorway. And finally in Tulsa, a woman's body is found in a trash can. Can her death be linked to the murder of her fiance the year before?

15 - Unfinished Business 2