Is It Real?: Da Vinci's Code

Were Jesus and Mary Magdalene actually married with children? Does a secret society exists that holds the secrets to the bloodline of Jesus Christ? Did Leonardo Da Vinci know the answers to all of these questions and reveal clues in his most famous masterpieces? National Geographic travels the world to uncover evidence to support and refute the claims of the best-selling title and in addition interviews other conspiracy theorists that believe Jesus' ancestors walk the Earth today.