Ghost investigators embark on expeditions to find the truth behind unexplained hauntings.
The questions in the search for the lost civilization of Atlantis are explored.
What goes on at Area 51? This investigation reveals never-before-seen details of the super-secret air base.
Is satanic human sacrifice fact or fiction? Depending on whom you talk to, it's a growing epidemic or a tabloid fantasy.
This episode focuses on the Bermuda Triangle phenomenon.