sergeant bradley larson, specialist stephan mace, and sergeant justin giagos.he men need even more even moro and lubricant for their .50 caliber machine gun. so he runs back to the barracks through a barrage of enemy fire. >> i remember entering the door and a lot of yelling. i remember sergeant hill telling everybody to be quiet. >> carter returns and he's very sweaty, very tired. >> and he said that we need to know who needs what. and i caught my breath. that's when i yelled, everybody needs everything. >> carter grabs lubricant for the machine gun and ammo. >> right then sergeant francis asks me where i was going. i told him and he said no, you can't go there, you'll get killed. >> carter runs the deadly gauntlet a third time. >> i used cover as i went. this wasn't a straight shot anymore. every time i would sit behind something, another explosion would go off so close. it's like it's time to move. i got across and i opened up the door and giagos, mace and larson were in the vehicle. mace was hunched over. in the floorboards there were six inches of hot, .50

i saw him is he had blood coming down from his kevlar on the back of his neck. >> and sergeant justin giagoswho is trying to help a badly wounded specialist steffen mace. >> bullets were impacting all around him. he turned to fire and he was taken down. i yelled, giagos is down. that's when sergeant larson, i heard him say, you know, i just took out two guys over here, get back in the vehicle. >> but mace is still out there, still alive. just out of reach. >> about that time is when i seen mace coming around the corner drag -- dragging his legs. he was on his forearms and his elbows, and he went towards giagos. that's when i said hey, sergeant larson, mace is alive. ky get to him, he's right there. i think he looked and he says no, you can't get to him. he says, you're no good to him dead. i knew he was right, but it ate me up so bad. i need a break. hold on. >> yeah. take as much time as you need. >>> when we come back -- >> we were low on ammo. everybody around us that was friendly was either wounded or dead. >> the rush to save mace and take the fight to the enemy. ♪ norfolk southern what

. >> reporter: two soldiers at the guard post, sergeants justin giagoes and vernon martin, were killgun fire and specialist stephons may lay gravely wounded. >> it almost liked he was crying but he was too dehydrated to form any tears. he said "please help me." >> reporter: carter left the shelter of an armored humvee and went to mace's side. you're doing this while the enemy is shooting at you? >> i was so focused on helping mace i didn't notice. >> reporter: carter and sergeant bradley larson dashed across the open ground one more time carrying mace on a stretcher. >> i thought to myself if i was ever going to run so hard to where my lungs lit on fire and my chest exploded from my heart going out this would be that day. >> reporter: but in war, courage is not always rewarded. stephon mace died on the operating table. >> the fact that either i didn't get to him in time or i didn't do the right thing made me believe that i had failed fully and completely. >> reporter: you could haven't tried any harder. >> you don't think about that when it's happening. >> reporter: thinking about wh