Uncle Bill decides that Buffy and Jody should be home-schooled by Mr. French when they don't quite fit in at the elite private school where he's enrolled them. Meanwhile, Sissy is surprised when the savvy and intimidating girl from her performing arts high school is also her neighbor in the apartment building.

Uncle Bill agrees to let Sissy attend her friend Sutton's party until Mr. French discovers to his horror that it's an underwear-only get-together. Meanwhile, Jody and Buffy welcome the arrival of a new bunk bed complete with bells and whistles.

When Sissy lands the lead role in her school's play, she's disappointed to learn that her uncle's persuasion may have had something to do with it. Mr. French intercedes when Sissy declares that she's dropping out of the performance.

As Halloween nears, Uncle Bill and Mr. French plan a special trick-or-treat expedition when they realize that Halloween in New York City doesn't compare to the small-town holiday Buffy and Jody are used to. Meanwhile, Sutton tries to coerce Sissy into playing a Halloween prank on the building's superintendent.