THUNDER RUN is the untold story of the dangerous and bloody capture of Baghdad by American forces. In April 2003, three battalions and fewer than a thousand men launched a violent thrust of tanks and Bradley Fighting Vehicles into the heart of a city of five million, igniting a three-day blitzkrieg, which military professionals often refer to as a lightning strike, or ''thunder run.'' In telling the story of the surprise assault on Baghdad- one of the most decisive battles in recent American combat history- this movie paints the harrowing picture of the soldiers on the front lines and the realities of modern warfare.