Union Major General Gouverneur Warren participated in almost every major battle in the Civil War's Eastern Theater, from Big Bethel to Five Forks. He was held in such high esteem that he was often looked upon as the Union general most responsible for the victory at Gettysburg, and was considered the logical replacement for George Gordon Meade as commanding general of the Army of the Potomac.

However, within days of the war's end he was relieved in disgrace on the battlefield by General Phil Sheridan. Warren spent the next fifteen years seeking the activation of a Court of Inquiry that he believed would vindicate his conduct. This book is the story of that court.