Two-Fisted Stranger (1946)

Steve Gordon, alias 'The Durango Kid,' hired to be a Deputy, takes over as Sheriff in place of the one who has been killed because he was getting to close to a swindling scheme engineered by a gang in order to bilk the local ranchers out of their property and cash. The scheme involves salting the local mines with industrial diamonds, and is going very smoothly as none of the ranchers have much knowledge of geology and are scrambling over each other to invest their savings in the worthless mines. Steve shows a lot of incompetence, while his alter-ego, The Durango Kid, is busily cleaning up the gang.