Sixty troops from the 101st Airborne suddenly found themselves surrounded by Taliban in the middle of the night at Combat Outpost Marga, a dusty patch of dirt in the heartland of the insurgency in eastern Afghanistan. With Taliban rockets, mortars and grenades slamming into the base, the men used every weapon they had. At the same time, six of the soldiers were at a lone observation post on top of a steep mountain just outside the gate. Thirty more Taliban crept up the mountain and overran them. The soldiers survived by shooting, running and tumbling down the mountain as they ran out of ammo. The deeply shaken soldiers give their first hand account of this extraordinary tale of war and survival ... and walk the ground with CNN's Barbara Starr just a couple of days after the fight.