corporal sarah mary was the medic attached to the team. this tells us a lot about the afghan war in one of its darkest corners. we gave the soldiers small cameras to record their patrols. since those events, we have interviewed some of them about what they did. the mission was to enter a compound less than 500 meters from the patrol base. it was known as a bad area. in order to protect the troops entering the target building, other compounds had to be taken along the way. the target was a heavy machine- gun which could be used against the patrol base or helicopters, using a nearby landing site. the night before the operation, the sergeant walked afghan soldiers threw their compounds -- through their compound. one man would cover while the other swept for ied's. >> [unintelligible] front door. to the south. >> the afghan army went forward to do what they practice the day before. >> [unintelligible] [yelling] it is a shock, over. >> he went first. he initiated. ied's. at first, i did not find him. we were doing a mission. then one of them ap