This is a bonus episode from The Global Story. Mohammed bin Salman: The unstoppable prince?After ruthlessly outmanoeuvring hundreds of rivals, Mohammed bin Salman has become the most powerful man in Saudi Arabia. The crown prince believes his sweeping vision for the country will bring in investment, top flight sport and visitors from around the world. His only demand in return... absolute loyalty. So, is MBS unstoppable?On this episode Caitríona Perry speaks to Jonathan Rugman, journalist and producer of a new documentary “The Kingdom: The World’s Most Powerful Prince”, which shines a fresh light on how he got to power and how far he’ll go to maintain it. They are also joined by the BBC World Service Arab Affairs Editor Sebastian Usher, who has spent time in Saudi Arabia for many years.Listeners in the UK can watch “The Kingdom: The World’s Most Powerful Prince” on iPlayer: https://www.bbc.co.uk/iplayer/episodes/m001zprm/the-kingdom-the-worlds-most-powerful-princeThe Global Story brings you trusted insights from BBC journalists worldwide, one big story every weekday, making sense of the news with our experts around the world. Insights you can trust, from the BBC World Service. For more, go to bbcworldservice.com/globalstory or search for The Global Story wherever you got this podcast.We want your ideas, stories and experiences to help us understand and tell #TheGlobalStory. Email us at [email protected] You can also message us or leave a voice note via WhatsApp on +44 330 123 9480.Producers: Richard Moran and Alix Pickles.Sound Engineer: Mike Regaard and Jack Graysmark.Assistant Editor: Sergi Forcada Freixas.Senior Editor: Richard Fenton-Smith.