The Battle of Fredericksburg is known as the most disastrous defeat the Federal Army of the Potomac experienced in the American Civil War. The futile assaults by Federal soldiers against the Confederate defensive positions on Marye's Heights and behind the infamous stone wall along the Sunken Road solidified Ambrose Burnside's reputation as an inept army commander and reinforced Robert E. Lee's undefeatable image. Follow historian James Bryant behind the lines of confrontation to discover the strategies and blunders that contributed to one of the most memorable battles of the Civil War.