The Most Dangerous Man Alive Jim Hardie's task of catching the Manning Brothers is interrupted when his attempt to help a stranded man backfires. The man, John Leslie Nagel, has a $25,000 bounty on him so he trusts no one including Hardie who has no interest in him. Details Casts Title The Most Dangerous Man Alive Genres Western Drama Release Date 1958-11-10 Episode Runtime 00 Hours 30 Minutes Season Number 3 Episode Number 9 Production Companies Revue Studios, Overland Productions Dale Robertson Jim Hardie