The allure of lost treasure has fueled countless myths and stories, with the most legendary of all being the treasure of the Knights Templar. Today, celebrated underwater explorer Barry Clifford and historian Scott Wolter are on a quest to uncover new clues that might connect two of history’s most famous groups, separated by half a millennium: the medieval Knights Templar and the pirates of the 17th century. Their journey takes them from the ancient fortified cities of Europe to the sacred lands of the Middle East, and from a hidden pirate island in the Indian Ocean to the early great cities of America. What they discover could potentially rewrite history and lead them to a treasure that has remained hidden for hundreds of years.