so there is no giving up, there is no surrender. you just -- i'm going to be the biggest pain in the butt i can be. >> this dawn-to-dusk battle would test that resolve. the taliban studied how the americans responded to previous attacks. >> when the enemies weren't shooting at us, they were shooting at the weapons. so they were disabling the weapons. >> the insurgents know the outpost relies heavily on mortars, so they make the big guns their first target. killing private kevin thompson as he raises to his post. troops begin running much-needed ammunition to the men on guard duty. but casualties begin mounting. sergeant joshua kirk is killed while returning fire. >> you could hear the rounds coming in from every direction and it was just basically a hornet's nest. >> sergeant first class john hill sees more young soldiers taking enemy fire. >> michael skuza was gunned down