Jealous Richie Cunningham bridles at Lori Beth's too-enthusiastic participation in a charity kissing booth, while unable-to-swim Potsie Weber fears that the traditional dunk in the lake following his fraternity pinning ceremony will embarrass him in front of his intended sorority pin-ee, lovely Jennifer Jerome.

When she hears that one of hubby Howard's friends divorced his middle-aged wife and married a much younger woman, Marion Cunningham fears that if she can't spice up her marriage, her fate may be the same.