V. 1. Mad irregular battle : from the crossing of the Tennessee River through the second day, August 22-September 19, 1863 -- v. 2. Glory or the grave : the breakthrough, the Union collapse, and the defense of Horseshoe Ridge, September 20, 1863 -- v. 3. Barren Victory: The Retreat into Chattanooga, the Confederate Pursuit, and the Aftermath of the Battle, September 21 to October 20, 1863.