A gunfighter returns to his home town from the Civil War with a useless left arm, having been shot during the war. He's back to help the sheriff, an old friend, hang a convicted murderer, also an old friend, whose family has vowed to break him out of jail.
Aside from the novelty of a one-armed gunfighter, there's nothing really special to set this series apart from any of the numerous western series of the time. This episode has a good cast--James Coburn as the one to be hanged in the morning, Royal Dano as the sheriff, Hank Patterson as the elder of the family and a very young Jim Hutton, who has a few lines at the opening of the episode before he gets killed off. Unfortunately, the writing by series creator Harry Julian Fink is trite and predictable, and director Richard Whorf does a pedestrian job with what little he's given to work with. Star David McLean doesn't really impress; he's OK, but that's about it.
The series only lasted one season, so I guess it's safe to say that it didn't get much better than this initial episode.