Annie Oakley SUNDOWN STAGE
Two outlaws rob a stage, kill the driver and leave the shotgun guard for dead. The guard survives the attack and, with the help of a passerby, manages to make it to Diablo. Gail Davis, Jimmy Hawkins, Brad Johnson.
This page did have The High Chaparral A Quiet Day in Tucson
Buck, Manolito and Billy Blue are sent to Tucson for food, supplies and boots, but are sidetracked instead by women and song. So some of the comments may be about that series.
Great episode one of the better ones.