On October 12, 2003, five US embedded tactical trainers (ETTs) working with the fledgling Afghan National Army, are ambushed at a derelict former Soviet tank park called "the Bone Yard" by militia of a local warlord. Outnumber 10 to 1, the US soldiers must clover around their vehicles--except for their commander, LTC Tom Brewer, who is cut off from them, and wounded--and fight it out until help arrives over an hour later. The Bone Yard gives an example of combat in the early years of the Afghanistan War.