Rescued from the Colorado River as an infant and raised by Shamus Tobin, tomboy Molly Brown is determined to find a wealthy man to marry. She journeys to Leadville, Colorado and is hired as a saloon singer by Christmas Morgan. After miner Johnny Brown renovates his cabin, the two wed, and he sells his claim in a sliver mine for $300,000. Soon after the money Molly hid in the stove accidentally is burned, Johnny discovers the richest gold vein in state history.