No one had ever heard his first name. He was just Lennister. There were wild rumors concerning his past, but nothing was known for certain.

At a meeting of the Teton Stockmen’s Association, Will Cameron announces his intention to send for Lennister to come to the Blue Dome country and put a stop to the rustling activities of Bolt Blodgett and his gang. Sheriff Strang warns that Lennister is a dangerous gunfighter and threatens to arrest him and throw him in jail. But Cameron’s proposal is accepted with the backing of all the cattlemen save one, and riders are sent out to locate Lennister.

One pair of riders return with a man who is surly, vicious and coldblooded, and who asks to be called Smith, causing Cameron to have second thoughts about the prudence of sending for Lennister. Good to his word, Sheriff Strang shows up to arrest Lennister, but the man makes a break for it, shooting one of the deputies in the process.

Is the proposed cure for Bolt Blodgett worse than the rustler himself?