Episode list

The bodies of several women began turning up around the city of Vienna, Austria. Viennese police turned to the FBI for help. The FBI and Austrian Federal Police investigated suspected serial killer Jack Unterweger, who became an international outlaw, hopping from country to country to evade capture and to kill again.

The FBI investigates the nationally known case of the 1964 murders of three civil rights workers in Philadelphia Mississippi amid the tension of the civil right movement.

An Arizona girl's 1984 kidnapping leads the FBI on the trail of a key suspect.

In 1994, a rash of home invasion robberies plagued the Detroit area. Each time, masked men dressed as police officers broke in with assault rifles and stole money and jewelry. When one homeowner shot back, the identity of the intruders was revealed.

After the abduction of Beth Kenyon, which Miami Police treat as a routine missing person case, her family hires a private detective agency. The detectives find convincing evidence of another missing woman and both are associated with a mysterious man. Beth's family then contacted the FBI. Soon the FBI was tracking sadist, rapist and murderer Christopher Wilder as he fled authorities on a cross country killing spree.

Robert Hansen's aggression toward women led to run ins with the legal system most of his life. But when he moved to Anchorage his behavior turned deadly as he became a serial rapist and killer who tortured and literally hunted his victims in the wilds of Alaska. But his public behavior and job in a bakery frequented by many police officers made him seem an unlikely suspect until the FBI applied behavioral profiling.

In 1990, a 14-year-old girl ran away from her Texas home and disappeared; six months later, her body was found hundreds of miles away in an Illinois barn. Agents tracked down a trucker who they believed was responsible for over 50 murders. Investigators knew they had to stop this menace of the highways.

Despite being an out of state runaway, Dawn Marie Birnbaum was treated with reverence by the Pennsylvania town where she was found murdered by the side of a road. Since no id was found with her body, identifying her, much less her murdered, should have been impossible. But persistence and several strokes of luck lead Pennsylvania State police and the FBI to her killer, James Robert Cruz Jr., a trucker who frequently traveled between Ohio and Pennsylvania. Authorities noted that as many as 600 other women and been found murdered in a similar fashion in Ohio during the decade before Cruz was arrested.

The FBI cracks down on police corruption related to drug trafficking in New Orleans. The investigation relied on a key informant and undercover agent.

The FBI must work to find the truth behind a woman's disappearance - without a trace of evidence.