Watching the first five b&w, 30 minute episodes was pure classic TV Western fun. Dale Robertson is Wells Fargo's special agent, Jim Hardy. Things go south in season 6 when the show expands to 60 minutes and color. Extra regular cast members are added, including William Demarest, Uncle Charlie from My Three Sons and a sidekick named, Bo. Not sure why the changes, but the series became silly and pointless. If The Big Valley had not come out a few years later, I would think they were trying to imitate that show.