Charles Bronson guest-stars as Harry Star, a halfbreed who is regularly subjected to the bigotry of the townsfolk. Feeling that Harry has been unjustly persecuted, Ben Cartwright hires the man as a ranchhand. What Ben doesn't know, but the audiences does, is that Harry is a member of a gang of horse thieves, who intend to exploit Ben's trust by pulling off an elaborate scam. Originally telecast on December 13, 1964, "The Underdog" was written by Donn Mullally. ~ Hal Erickson, Rovi