BEN MACINTYRE is a best-selling author of military and espionage history. He has written and presented several films for BBC TWO from his books, including Operation Mincemeat.

Ben has been hand-picked by the SAS to exclusively tell their story, gaining access that no civilian has ever been granted. Each day in the SAS archives leads to a new discovery, as Ben pieces together this story for the first time.

The history of the SAS is an exhilarating tale of fearlessness and heroism, recklessness and tragedy; of extraordinary men who were willing to take monumental risks. It is a story of the meaning of courage.