The opening episode, Who Dares Wins, focuses on Colonel David Stirling, the man who in 1941 invented the SAS. After the Second World War, Stirling created a private mercenary army and, determined to harness the growing power of Arab oil money, began Britains arms trade to the Middle East. His aim was to keep Britain great. But what he didnt realise, was that this money would eventually take control of him and his beloved country.