A priceless relic unearthed on a shipwreck in Madagascar launches dive expert Barry Clifford and historian Scott Wolter on a world-wide investigation to find out if there's a link between two of history's most legendary sects--17th century pirates and the medieval Knights Templar.
http://www.history.com/shows/pirate-treasure-of-the-knights-templar/season-1/episode-1
