A simple diamond heist leads Lupin into the machinations of a bizarre cult. The cult is based around the prophecies of Nostradamus, and they kidnap Julia, the daughter of Douglas, a wealthy American who is seeking the presidency, along with Lupin's diamond. At stake is the lost book of prophecy Douglas holds in the vault at the top of his skyscraper. Can Lupin rescue Julia, find a way into the vault, and discover the connection between the cult and the kidnapping? And what about his diamond? (thetvdb.com)