The Bravo Two Zero mission conducted by the SAS behind Iraqi lines is the most famous story of courage and survival in modern warfare. Here Chris Ryan reveals for the first time the true aim of the mission. Dropped behind enemy lines, they set off on 20 mile trek across hostile terrain, each man heavily laden with equipment and weaponry. Struggling through unexpected sub-zero temperatures, they soon encountered enemy troops. They then fought against enormous odds in an engagement in which Chris Ryan was hurt, and separated but battled through. Only two others remained with Chris, one dying of hypothermia and one who was then captured in an Iraqi ambush. The most remarkable part remained - then Chris's long lone journey across the desert into Syria and freedom.