the yarnell fire. that was in june. an audio recording has been released of the final moments and is revealing what they faced. elizabeth erwin reports. >> i was just saying i knew this was coming -- >> reporter: seeing the hot shots working together for the last time. >> i could just feel it, you know. >> reporter: hearing eric marsh talk to his crew makes what happens next even harder to handle. this is never-before-seen video watching the yarnell hill fire creep closer and closer. >> breaking in on arizona 16. we are in front of the flaming front. >> reporter: and hearing the granite mountain hot shots react to the shifts flames. what you're seeing now comes from another firefighter's helmet camera. he was not with the hot shots. but you can hear the final radio transmissions just moments before the men died. >> is granite mountain still in