Kit Carson spends his teenage years in the Southwest, learning to hunt, trap, and scout. Along the way, he befriends other frontier legends like Jim Bridger, and he quickly earns a reputation for his steely nerves and fearlessness. When Carson nearly dies in a skirmish with Blackfeet warriors, his mind turns to marriage, and he begins to court a famous Arapaho beauty named Waa-Nibe. But the realities of mountain life intrude on Carson’s marriage plans when a Canadian mountain man, known as the Bully of the Mountains, insults Waa-Nibe. An incensed Carson challenges the bully to a duel to the death, and a legend is born when the two men face each other on horseback in the heart of the wild frontier.