Wesley Curnow, a young Cornish miner, arrives in the United States to seek an uncle who is working on the mines in Missouri. Taking passage on a boat from New York, bound for New Orleans, he meets up with a charismatic U.S. marshal who is en route to the western territories to bring law to the area. After many exploits, Wes parts company with his companions only to find his uncle has moved away. Wes faces German miners, meets an old 'Mountainman' who teaches him proficiency with a revolver, and then battles overland through inhospitable country. But can he survive the journey?