

Investigates the mysteries behind declassified top secret government files with stunning details about the world's most credible UFO sightings and alien encounters. The series pieces together the data on these incidents, and tries to answer the question: what really happened?

The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena. Mulder believes in the existence of aliens and the paranormal while Scully, a skeptic, is assigned to make scientific analyses of Mulder's discoveries that debunk Mulder's work and thus return him to mainstream cases.

Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.

Mass UFO sightings from the last 50 years fuel a mystery in this documentary series featuring eyewitness accounts, expert interviews and new evidence.

Though claims of extraterrestrial encounters have long been dismissed, many believe the existence of UFOs is not just likely, but a certainty.

In Search of... is a TV series that was broadcast weekly from 1977 to 1982, devoted to mysterious phenomena. It was created after the success of three one-hour TV documentaries produced by creator Alan Landsburg: In Search of Ancient Astronauts in 1973, In Search of Ancient Mysteries and The Outer Space Connection, both in 1975. All three featured narration by Rod Serling, who was the initial choice to host the spin-off show. After Serling's death, Leonard Nimoy was selected to be the host.

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.

Ghost Hunters International was a spin-off series of Ghost Hunters that aired on Syfy. The series premiered on January 9, 2008. Like its parent series, GHI was a reality series that followed a team of paranormal investigators; whereas, the original series primarily covers only locations within the United States, the GHI team traveled around the world and documented some of the world's most legendary haunted locations.

Explore the world’s most fascinating, strange and inexplicable mysteries. Each episode features compelling contributions from scientists, historians, witnesses and experiencers—each seeking to shed light on how the seemingly impossible actually can happen.

In this gripping docuseries, legendary reporter George Knapp travels the globe to uncover new evidence about UFOs and investigate their presence on Earth.

Real people sit down with friends and family to share terrifying true stories from their past, re-created through chilling re-enactments.

A chilling series in which survivors of a paranormal experience relive their harrowing encounter.

A tense, filmic and high-octane drama-documentary series that brings to life the stories of people who have lived through paranormal experiences that defy explanation. Using a mixture of intimate first-hand testimony and grittily realistic drama, the audience is transported into a world turned upside down by extraordinary and terrifying events.

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

The series heads to the very frontiers of space and science to produce the definitive television history of science fiction, told through its impact on cinema, television and literature, with the help of filmmakers, writers, actors, and graphic artists. Each episode will explore one of the enduring themes of science fiction: time travel; the exploration of space; robots and artificial intelligence; and aliens.

Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks, treasures, and sunken cities on the bottom of lakes, seas and oceans around the world.

This documentary series, made in partnership with Vox, explain some of the world's current trends, from politics, to science to pop culture.

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

A young woman is recruited into a secret government agency to be “stitched” into the minds of the recently deceased, using their memories to investigate murders.

Part detective story, part true-life drama, long-running series explores some of the most iconic moments in history to debunk myths and shed new light on past events. Using the latest investigative techniques, forensic science and historical examination, it shatters accepted wisdom, challenges prevailing ideas, overturns existing hypotheses, spotlights forgotten mysteries, and ultimately rewrites history.

When Washington's most powerful players are pulled into an international conspiracy, an unlikely puppeteer will bring everyone from CEOs to The President of the United States to their knees by threatening the things they hold most dear.