NHK Special: Unsolved Cases

The docuseries follows people deeply involved in the group NXIVM — which is faced with various charges, including sex trafficking and racketeering conspiracy — over the course of several years.

With narrative driven exclusively by the detectives themselves, each episode ventures deep into the mind of a homicide detective as they describe in vivid detail the one case forever ingrained in their memory.

The First 48 follows detectives from around the country during these first critical hours as they race against time to find the suspect. Gritty and fast-paced, it takes viewers behind the scenes of real-life investigations with unprecedented access to crime scenes, autopsies, forensic processing, and interrogations.

Presented by Walsh, the show profiles and assist law enforcement in the apprehension of fugitives wanted for numerous crimes, including murder, rape, kidnapping, child molestation, white-collar crime, organized crime, armed robbery, gang violence, and terrorism, and also many of whom are currently on the FBI Ten Most Wanted Fugitives list.

Rescue 911 is an informational reality-based television series that premiered on April 18, 1989 and ended on August 27, 1996. The series was hosted by William Shatner and featured reenactments of emergency situations that often involved calls to 911. Though never intended as a teaching tool, various viewers used the knowledge they obtained watching the show. Two specials, titled "100 Lives Saved" and "200 Lives Saved," were dedicated to viewers who had written to CBS with their stories on how the knowledge they obtained watching the show allowed them to save the life of someone else. At least 350 lives have been saved as a result of what viewers learned from watching it.

Eerie encounters, bizarre disappearances, haunting events and more perplexing phenomena are explored in this chilling investigative docuseries.

In this true-crime documentary, a cult expert and filmmaker infiltrate a polygamist sect to expose a self-proclaimed prophet and bring him to justice.

This intense documentary series details true stories of neighbors gone bad, from heinous fraud schemes to senseless acts of violent retribution.

Investigates a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Fresh, new evidence and perspectives will be showcased, such as never-before-released documents, personal diaries and DNA evidence.

Infographics and archival footage deliver bite-size history lessons on scientific breakthroughs, social movements and world-changing discoveries.