Fonzie asks Richie to watch after his girl, Denise, while he's out of town at a demolition derby. Denise, upon hearing what Fonzie's asked Richie to do, decides to test Richie's trustworthiness. Richie succumbs to temptation and makes out with Denise at Inspiriation Point, but he later finds out that she has mononucleosis.moreless
Richie goes against Howard and, to get a girl, campaigns for Adlai Stevenson in the 1956 Presidential race.
Howard wants Christmas Eve to only include the family, but Richie discovers that Fonzie will be all alone.
Richie is named R.O.T.C. squad leader but has trouble controlling his squad. After several warnings to obey his commands, he puts them all on report.