How to Make a Royal Marines Officer

Twenty-nine young men arrive at the Commando Training Centre in Devon to undergo 12 months of what is believed to be the toughest infantry training in the world. There to learn the art of war and win the coveted green beret, the young officers' first lesson is that their own side takes no prisoners.

The soldiers are casually dismissing the rest of the world as 'civvies'. But no civilians would willingly undergo the final commando test that produces the coveted green beret - 30 miles across crippling Dartmoor terrain, carrying 40lbs in less than seven hours. Seven hours ten minutes is, as one of them discovers, not acceptable.