During an evening of inopportune timing, Frankie introduces his new girlfriend, Heather, to Joanne, who has just gotten her tubes tied and is still on pain medication. Instead of taking care of Joanne post-surgery, Jack has his hands full policing Frankie and Rachel. Meanwhile, George and Mikey try to retrieve a porn video they disguised in a "Casablanca" VHS case that has been placed into the wrong hands at the Dunlevy house.
The homecoming dance arrives and Frankie must decide whether to stay home or go to the dance with a substitute, since the girl he has a crush on is going with someone else. Rachel is bummed that the school has banned grinding while Jack and Joanne are excited at the prospect of having the house to themselves.