Janine spearheads a pilot program that brings a librarian to Abbott; however, when friction arises with one of the teachers, it strains Janine's relationships with both parties. Meanwhile, both Melissa and Jacob deal with some big changes at home.

Two teachers head out on a double date, but when they run into familiar bar patrons, it proves to be an unfortunate distraction. At Ava’s first book club meeting, the group ends up in a debate over who would be the best post-apocalyptic leader.

Janine gets a budget for class pets, but Melissa is resistant to taking on the added work and responsibility for her room's guinea pig; an IT rep from the school district arrives to set up new computers.

It’s Halloween at Abbott Elementary! Janine and Gregory proudly show off their couple’s costume, but it fails to translate. Meanwhile, Barbara faces pushback from parents concerned about hygiene and her beloved apple-bobbing tradition.

A debate over a controversial book leads Ava to remove it from the library, but some parents push for its return.

Ava and the teachers must band together to hide the golf-course contraband.

The Abbott teachers turn their open house into a car wash to help raise money for the school.