Trace the roots of the Civil War through the opening stages of the fighting at Bull Run and beyond. In the West, bloody battles are fought at Fort Donelson, Shiloh, and Stones River as the Union slowly cuts the South in two along the Mississippi River. In the East, the Confederates outmaneuver the Union armies in their defense of Richmond. An ill-planned invasion of Maryland end in Confederate disaster at Antietam, but Robert E. Lee's army remains unbroken and inflicts a terrible defeat upon the Union Army at Fredericksburg only two months later.