In this weeks episode of Extraordinary Lives, we speak to Billy Billingham, a decorated military leader who served in the SAS for over 20 years. The SAS is famous for its gruelling selection process and are rightfully considered one of the best special forces in the world. After his military career, Billy became a bodyguard and looked after A-list celebrities such as Brad Pitt and Angelina Jolie. He is now Chief Instructor on Channel 4’s hit show SAS: Who Dares Wins.