it had wounded two of hintz's men. >> hintz: what we got going on? >> logan: specialist peter kuyper's shirt was soaked with blood from wounds to his head. they're all used to dealing with injuries here. 40 out of hintz's 88 soldiers have been awarded purple hearts for wounds received in combat. >> all right, well, let's walk up this way a little bit. >> logan: the 40-year-old commander from iowa has received three purple hearts himself. this is a tough fight, and you're in one of the worst places. i mean, even for somebody like you, with a rough tour in iraq under your belt, surviving eight roadside bombs... >> hintz: i don't even think that's uncommon, though. i mean, i've got to be honest, my whole company's that. i've got a kid out there that's got eight purple hearts. he just got shot in the head during a battle. >> logan: and he... >> hintz: kid fought. >> logan: ...survived? >> hintz: he survived and he fought for three more hours. i mean, it's just the way these guys are. >> logan: captain hintz commands one of the most dangerous pieces of gr