Based upon the critically-acclaimed and award-winning book, Retreat From Gettysburg: Lee, Logistics & the Pennsylvania Campaign. This documentary takes the viewer on the very roads used by Lees Army and immense wagon trains, as well as the key sites along those roads where Lee established defenses that delayed or defeated advances by General Meades Union forces. Magnificent aerial footage of the roads, mountain passes and Potomac River crossings make this documentary unforgettable. Students will Learn: The two routes General Lee's army took from Gettysburg to the Potomac River / The advantage, if any, mountains give to a retreating army, and how General Lee used them during the retreat / If Union General George G. Meade actively pursued General Lee's retreating Confederate army / The line of supply and communication General Meade's Union army had while in Pennsylvania, and if General Meade was able to use it to effectively feed and equip his horses, mules and troops / The difficulties faced by General Meade's Union army as it pursued the retreating Confederates / The importance to General Lee's army of the defeat of the Union attacks at Williamsport, Maryland on July 6, 1863 / Who organized the Confederate defense of Williamsport, Maryland?