It’s the last day of school! Ahead of summer vacation, Janine throws the perfect end-of-year party for her colleagues and friends, taking all their interests into consideration.

Ava announces the school district is sending a group of volunteers to help out at Abbott. However, when they arrive, things don’t go as planned.

When the teachers hit a karaoke bar for a night of fun, Jacob bumps into an old friend.

The Abbott staff heads to the Pennsylvania Educational Conference. Gregory reluctantly attends after a disagreement with Amber and bonds with Janine over their similarities. Jacob finds himself charmed by the Addington teachers.

Abbott Elementary rallies together to fight the threat from Legendary Charter Schools. Ava pitches a festival to draw parents to school and collect their signatures for a petition. However, Draemond shows up with the intention of derailing the event.

Melissa hosts the Schemmenti family Christmas Eve dinner and goes to great lengths to make sure everything is perfect. Meanwhile, Janine and Gregory get an unexpected guest.

Abbott Elementary goes on a schoolwide field trip to the Please Touch Museum, which has some of the older kids skeptical.

After Jacob reveals a detail about his personal life, Janine realizes she doesn't know the other teachers as well as she thought; Gregory's stern teaching approach is causing his whole class to underperform.

Ava and the Abbott teachers go to the district to plead for Ava’s job back. Meanwhile, Gregory handles duties as interim principal.

It’s Halloween at Abbott Elementary! When a student steals a bag of candy meant to be given out to the kids at the end of the day and starts distributing it during school hours, the teachers band together to find the culprit. Meanwhile, Janine is invited to a Halloween party by an old friend and starts to reconsider her personal life.

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

While on Abbott's annual zoo field trip, Tariq reveals that he has been offered a job in New York; Janine struggles with a big choice; Barbara starts questioning her future after finding out her favorite tuatara has been retired because of old age.

After a student is caught smoking, the Abbott staff come together to revamp the outdated drug policy. Meanwhile, Janine tries to prep the new substitute teacher for her class but finds it challenging to give up her former role.

The teachers are back for development week, a time to prepare for the upcoming year. Janine is determined to start the year off right and leave her problems at home. Ava runs a side hustle out of the school parking lot.

Janine is out sick for the day; but with the substitute teacher shortage, Ava grows desperate and must step in herself to help out. She starts the day in an unconventional fashion, disrupting the students’ typical routine as well as neighboring classrooms. Meanwhile, Barbara and Melissa revel in the quieter-than-normal teacher’s lounge.

On the last day of school before winter break, Janine is convinced by her friend to go to a popular hookah club where she runs into unexpected colleagues. Elsewhere, Jacob crashes Barbara and Melissa's traditional holiday dinner and in the process begins to learn the true meaning of Christmas.

On Valentine’s Day, the Abbott teachers discuss their relationships and plans for the holiday. Janine finds out one of her students has a crush on her and when turning to a colleague for advice, she inadvertently learns a secret about another teacher. Elsewhere, Ava sits in on Jacob’s Black History class after receiving a complaint

Gregory is named Educator of the Year. Later, Janine deals with a difficult student, and it's revealed that Barbara hasn't completed her teaching requirements.

Janine's plan for a Memorial Day weekend solo trip is derailed when her mother shows up unannounced asking for help; Gregory notices his colleagues are great at small talk and realizes he needs to brush up on his people skills.

Abbott Elementary takes a field trip to the Franklin Institute; Gregory is eager to spend time with a reluctant Janine; Ava teaches the students about aliens, which leads to chaos.

Jacob manages to pull off a schoolwide field trip to the park; however, when Abbott must share the playground, the fun and games turn competitive. Elsewhere, Mr. Johnson enjoys having an empty school to himself.

It’s Open House night at Abbott Elementary, and while Janine prepares to meet her struggling student’s mother, the rest of the faculty uses the time to relax. Gregory is taken aback when he learns how Ava got the principal job, and later, Barbara’s daughter’s visit creates a commotion in more ways than one when

When the students start participating in a new online trend that causes disruption to the school, the teachers band together to put an end to it. Meanwhile, Mr. Johnson provides comforting life advice to Gregory; and later, the teachers finally meet Jacob’s boyfriend, Zach, who joins in to help stop the students “desking.”

The competition heats up between Melissa and Janine as their classrooms go head-to-head in a read-a-thon sponsored by a local pizza shop. Both teachers encourage their students to hit the books hard but face some unexpected obstacles on their path to pizza glory. Meanwhile, Jacob and Gregory join forces and attempt to get their student-podcasting club off the ground.

Barbara organizes a candy-selling fundraiser to raise money for a school field trip to the science museum. When sales don’t go as planned, Ava steps in to teach the students new, unconventional selling tactics. Elsewhere, Mr. Johnson and Jacob butt heads about how to take care of a cat found in the janitor’s closet.