The Walton family befriends a young, black preacher who wants to earn money to start his own church by becoming a professional prizefighter.
A jewel thief's carefully laid out plans to steal a diamond worth one million dollars are ruined when he is forced to kill a security guard who shows up during the heist.
A police lieutenant (Steve Ihnat) is suspended for killing someone he had a grudge against; guest Leslie Parrish.
Mannix learns a slain private investigator friend was working for a comic (Milton Berle) who won't discuss his blackmail case.
Trouble follows when Mannix runs into an old flame.