Man of the West (1958) on Netflix

Former outlaw Link Jones gave up that life long ago. He's now traveling from his small town to Texas to hire their first schoolteacher. When the train stops on the way, they are set upon by armed robbers but the train escapes leaving behind Jones, the fast-talking Sam Beasley and saloon singer Billie Ellis. They start walking and eventually reach a place that Link knows well: the farmhouse where he once lived. There he finds the men who robbed the train and also his uncle, Dock Tobin, who wants Link to return to his old ways and re-join his gang. Link has no interest in doing so and has to find a way out for them, knowing that they will die once the gangs finishes its next big job.