Terrifying encounters with paranormal activity told by the people who witnessed the events. Recreated by actors.

Bob Gimlin and Roger Patterson share the story of their journey to find Bigfoot after a pair of giant human-like footprints make headlines around the globe. What they witnessed will shock the world.

An unprecedented look at the amazing gadgetry behind some of history’s greatest stories of espionage, the ingenious minds that invented them and the agents that put them to use.

An account of Adolf Hitler's rise to power in Germany and the subsequent downfall of the Nazi regime, featuring original footage of the period.

This special explores the evidence, conspiracies and eyewitness accounts surrounding the theories of time travel.

How did a French prophet living in 16th century France predict so many modern day disasters? From the tragic events of 9/11, to the Ebola outbreak in 2014. How could one man see so far into the future so accurately?

Off-duty police officers use their investigative skills for cases involving paranormal activity.

Documentary examining the growing number of conspiracy theories surrounding the destruction of the World Trade Center that have been circulated online.

Revealing, for the first time, the astonishing secret events behind the Russian submarine K-129 that went missing on March 8, 1968, taking the Soviet Union and the U.S. to the brink of war.

Ghost Inside My Child explores cases of children who claim to be reincarnations of people who died violently.