Having put his outlaw past behind him Corrigan O'Kelley returns to the railroad, but the hard toil soon makes him look for a better way to lead an honest life. A chance comes along when he saves Homer Dearborn from being robbed and his good deed earns him an offer of work that's more to his liking.
But before he can help Homer build a saloon for his brother Warren, the businessman Myron Frey goes back on a deal. Unless Warren pays him more he won't give him the materials he needs. So Corrigan helps his new friends turn the tables on Myron, but that only leads to more trouble and, when he incurs the wrath of the bank raider Reilly Todd, Corrigan will find that going straight will probably mean going straight to hell.