Who is Jack the Ripper? Why are planes vanishing over Nevada? How did Marilyn Monroe really die? What is the truth behind Bigfoot and the Loch Ness Monster? Do we know all there is to know about the collapse of the Twin Towers? This series investigates compelling testimonies and explosive accusations surrounding history's great mysteries and legends. By using cutting-edge technology and analytics, we examine data and eyewitness accounts in search of the missing evidence that will finally separate reality from mystery.