Joel Thornton is a retired US deputy marshal now living a quiet rancher's life outside the Texas town named in his honor. Days after welcoming his daughter, Elizabeth, home after seven years back east in Philadelphia, an old fugitive attacks the Tilted T Ranch seeking revenge and Thornton's cattle. Wounded in the ensuing gunfight, Thornton calls upon his daughter to find his old partner, former US Deputy Marshal Ben Chance, informing her, "Chance will know what to do."

The young woman's journey leads her on an adventure that exposes her to the dangers of the Old West, including an Indian attack on her stagecoach, where a mysterious gunslinger emerges from the hills and saves the coach. Enchanted by Elizabeth and her quest, the gunslinger joins her in the search for her father's former partner, who unbeknownst to them has been wounded in a gunfight, having been saved by a young brash gunslinger on a secret mission of his own.

Together, the two young gunslingers join the aged former Marshal Chance in the hunt for the outlaws who shot Elizabeth's father and stole his herd.