Flint Moran was fourteen years old when the Civil War ended. He was fifteen when his family bought a plot of land near Tinhorn, Texas. He was barely nineteen when he caught a pair of rustlers stealing cattle—and singlehandedly brought them to justice. How did a teenaged boy track down and capture two hardcase thieves without any help? That's what Tinhorn sheriff Buck Jackson wants to know. He can't help but be impressed by Flint's sharp eye and natural talent with a Henry rifle. So he offers to deputize the boy—tin badge, Colt Frontier Six-Shooter, and all—and Flint happily accepts.

Meet Hunter Buchanon, a towering mountain of a man who learned how to track prey in Georgia, kill in the Civil War, and prospect in the Black Hills of Dakota. Now he's trying to live a peaceful gun-free life - but fate has other plans for him. When Hunter Buchanon rescued a wounded coyote pup - and named him Bobby Lee - he had no idea the cute little varmint would grow up to be such a loyal companion.

As a young man, John Bannack worked hard on his brother's farm—until times got tough and his brother grew desperate. Desperate enough to rob a bank. Unfortunately, John's brother left a trail that led straight to the Bannack farm. When a posse showed up to make an arrest, John made a fateful decision: He confessed to his brother's crime. Sacrificed his freedom for the sake of his brother's family. And doomed himself to a hard, hellish life in a rat-hole state prison.

Fifteen-year-old Joe Beck wasn’t listening as the minister eulogized his uncle but was already planning on what he would have to do as soon as they returned to the Quimby farm. He wasn’t welcome there even before his uncle had died and knew that his cousin John would soon order him to leave. While he had had a basic idea of where he would go after he left the farm, he didn’t know what he would do with the rest of his life.

Two of the Johnstones’ most legendary heroes—the rugged mountain man known as Preacher and the Scottish clan rancher Jamie Ian MacCallister, here together for the first time—are forced to choose sides in a blood-soaked battle for the heart and soul of a nation divided. This is not the American dream they were looking for. This is a nightmare. A brutal, blood-drenched frontier war that two heroic men must fight and win—or one struggling nation will never come together. For liberty and justice for all.