The story of how the British special forces unit, the SAS, came to be formed, based on the book by Ben Macintyre. <br>The show will explore the thinking that led to the creation of a new form of combat in the deserts of North Africa during World War II. It will celebrate the glory, action and camaraderie at the heart of this story, and delve into the psychology of the flawed, reckless but astonishingly brave group of maverick officers and men who formed the SAS in the darkest days of World War II.