The sudden ascent of Mohammed bin Salman from an obscure royal heir to the Crown Prince of Saudi Arabia — the country's de facto ruler — has fascinated Jonathan Rugman, an author and longtime correspondent in the Middle East. Jonathan's latest BBC documentary, "The Kingdom," traces MBS's life from an unruly youth to a series of Machiavellian maneuvers to cut ahead of cousins and uncles in the line of royal succession. Jonathan's reporting illuminates a brash but secretive young autocrat whose wealth and power have few equals anywhere on the planet. After years of high-profile murder, jailings, and crackdowns, a formidable question remains: What more does MBS want?

Jonathan Rugman is a Visiting Lecturer in the journalism department at City, University of London, who has reported from some 50 countries during his 30-year journalism career. He is the author of "Ataturk's Children – Turkey and the Kurds" and "The Killing in the Consulate," in which he investigated the murder of the Saudi journalist Jamal Khashoggi. His numerous awards include a BAFTA for his coverage of the Paris terror attacks of 2015.