Richie, Potsie, and Ralph sing with the school choir (they sing "Glory, Glory"). Miss Wheaton gives the itinerary for the choir's trip to Chicago. The guys discuss their suspicions that Miss Wheaton and Mr. Pinney, the choir master, are an item. Richie packs a suitcase, and Howard helps him close it while telling him to be careful with his money in Chicago. Fonzie wants Richie to pick him up some grease from a particular garage in the northside of Chicago for his grease collection. Ralph is appointed monitor for the bus, and they start singing "10,000 Bottles of Beer on the Wall." They check into the hotel room, and Potsie steals all of the hotel advertisement items in the room. While Mr. Pinney guards the elevator, they decide to leave by using the stairs. They go to the Blue Pelican and see comedian J. Jackie Silver. They get the check and are shocked to find out that it is for $36.00 ($6 each for six ginger ales and an entertainment charge). Potsie forgets his money in the money belt at the hotel. Potsie and Ralph go back to the hotel to get the money but can't get back out to bail out Richie because of Mr. Pinney. The waitress offers to take Richie back to the hotel room to pick up the money. Mr. Pinney catches them with the waitress in their room and tells them they are out of the choir. They are allowed back in after they witness Miss Wheaton dumping Mr. Pinney after she sees him with the waitress.
Songs in this episode:
"Battle Hymn of the Republic" (sung by the choir)