For SAS soldiers, killing is a simple fact of life. How do they rationalise this brutal part of their existence, and how do they let go of it when they return to the real world?

A former soldier captured while operating undercover in perilous post-Saddam Iraq recalls his intense period of captivity, mock executions and his fear of being torn apart by a mob or handed over to a violent gang or radical group. Plus, how selection and training prepares them for extreme situations and the importance of being able to think and act on your feet.

Former SAS soldiers tell stories of their experiences, intercut with dramatic reconstruction. A First Gulf War veteran reveals how his experiences in the desert left him plagued by psychological problems long after he left the service.

Semi-dramatised glimpse into the secretive world of the Special Air Service featuring a retelling of one of the regiment's most notorious chapters, that of Bravo Two Zero.