"You see, son, that's where you're in error. I'm not bound by military regulations concerning treatment of prisoners." When FBI Agent Jason Sparks investigates the brutal murder of the president's chief of staff, he uncovers a 150-year-old document that someone is willing to kill for. As bodies pile up from Vermont to Arizona, Sparks realizes that powerful families with roots in the Civil War are locked in a deadly game where billion-dollar contracts and political ambitions hang in the balance. Racing between modern Washington power corridors and Lincoln's war-torn capital, two investigations separated by centuries converge on a secret that could destroy everything.