A first hand perspective into America's longest war, cameras travel to the front lines in Afghanistan, where the US Army is working together with Afghan soldiers to defeat the Taliban. 身临美国历史上时间最长的阿富汗战争一线，通过摄影团队记录下来战斗前线的珍贵影像，了解美国陆军与阿富汗是如何抗击塔利班武装，为阿富汗带来民主和和平。