Season 4

On June 6, 1992, Suzie Streeter and Stacy McCall are out celebrating high school graduation. By morning, the teens are missing, along with Suzie's mother. The case leads police on a nationwide search as they work to solve this baffling mystery.

So-Cal surfer and tech entrepreneur, Chris Smith, dreams of making a tidy sum of money and then surfing off into the sunset. It seems his dreams have come true, but all is not as it appears.

In 1984, 10-year-old Kevin Collins disappears on his way home and the city of San Francisco is galvanized in an effort to find him. With few leads to go on, his case sheds light on hundreds of other kids who have vanished without a trace in the U.S.

In 1971 and '72, Washington DC is terrorized by a cunning killer who abducts and murders six young African American girls. Police and the community are outraged by the serial killings that target young children in their own neighborhoods.

Art imitates life when Cambodian genocide survivor Dr. Haing Ngor wins an Oscar for his role in the film The Killing Fields. But when he's gunned down, the LAPD investigate a web of political intrigue, revenge, and street gangs to uncover the truth.

In July of 2010, NBA star and family man Lorenzen Wright goes missing outside of Memphis, TN. When his dead body is discovered in the woods, investigators find that this case is far from a slam dunk.

A double murder involving the family of a federal judge will lead the FBI, US Marshals, and Chicago PD on an investigation of epic proportions. But when law enforcement finds the end of the trail, they learn the death count may climb higher.

In 1988, a young woman is found murdered in her Modesto, CA, home, leading police to investigate the strife and infidelity in her marriage. A surprising witness eventually comes forward.

When a widower and father of three is found murdered outside his Long Island home, police have reason to look into shady business dealings as a possible motive. Then, a tip leads to three unlikely suspects, exposing dark family secrets.

Right before Thanksgiving, two masked gunmen reportedly invade a couple's home and kill the husband; with few leads, police use ballistics, forensics and neighborhood gossip to solve this cold-blooded murder.

After doting mother Cheryl Coker vanishes from Riverside, OH, numerous searches turn up nothing; as police take a closer look at the case, they uncover some disturbing information.

A senseless murder rocks an African-American neighborhood in 1970s Detroit; police arrest suspects who are ultimately convicted of murder, but 47 years later, the truth finally emerges to right history's wrongs.