Bonanza S1 E26 The Avenger

The Avenger \\rBen and Adam are locked in jail, about to hung for a crime they didnt commit. Joe and Hoss must find out why the witnesses to the alleged crime have perjured themselves before the execution takes place. They receive help from an unexpected source, a drifter called Lassiter who is searching for the men who committed a lynching in Kansas years ago.