Nathaniel King left New York City in 1828 to venture into the vast unexplored regions beyond Mississippi. He heads west, lured on by dreams of wealth based on his uncle's promise to share with him "the greatest treasure in the world".

Matt Bardoul was a good man to have as a friend and a bad one to make trouble with. He was also a single-minded drifter—until he met his match in an outspoken beauty named Jacquine Coyle. She was headed into the Bighorn Mountains with her father and an expedition in search of gold. After Matt signs on to join them, he discovers that there is a group of outlaws in the party—gunfighters and thieves that Matt wouldn’t trust for a minute.

When Zach Connors and his pa left their Kentucky homestead in the summer of 1824 to see the Rocky Mountains, he didn't realize he would never see his childhood home again or that he would find love, friendship, fame, and a new home in this wild and harsh wilderness. After a grizzly kills his pa, Zach struggles to survive a cold and brutal winter alone. After killing a rouge grizzly and fighting hostile Indians on his own, he becomes known as Grizzly Killer and is respected throughout the West. Along with his dog, Jimbo, whom the Indians call the Great Medicine Dog, he finds Running Wolf, an injured Ute warrior, and together they fight off a hostile war party. They rescue two Shoshone sisters from the brutality of a French trapper and take them as wives.

As the father of a young Crow tribesman, Preacher would like nothing more than to see the long-time natives and newly arrived settlers live together in peace. Then, the killing starts.... As a family man and frontiersman, Jamie Ian MacCallister is more than happy to help the officers at Fort Kearny negotiate a peace treaty with the Crow nation. Until it all goes to hell.... 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.

The Long Trail is the first book in the best-selling series about the McCabes, a family building a ranch in the rugged wilderness of post-Civil War Montana, and of a young man seeking his family and his destiny.