A group of dedicated, passionate teachers — and a slightly tone-deaf principal — are brought together in a Philadelphia public school where, despite the odds stacked against them, they are determined to help their students succeed in life. Though these incredible educators may be outnumbered and underfunded, they love what they do — even if they don’t love the school district’s less-than-stellar attitude toward educating children.
Going against everyone’s advice, Janine takes it upon herself to fix every problem when she notices a flicking light bulb in the hallway. Despite the best intentions, Janine ends up causing new issues throughout the school. Elsewhere, Gregory asks Barbara for help talking to a parent, which leads him to spend his lunch period in an unexpected way.
It’s Wishlist Week at Abbott: a chance for teachers to ask the local community for new school supplies. Janine takes to TikTok and with Ava’s assistance, her video is a success and goes viral. Feeling confident, Janine and Ava make a video for Barbara behind her back after she declines their help. Later, Janine encourages Gregory to decorate his classroom.
When a new computer program is introduced at Abbott, Janine is excited to finally help Barbara out with something. However, Barbara is reluctant to accept change and finds herself in a tricky situation when she decides to lie about her students’ results rather than admit defeat. Elsewhere, Melissa surprises Jacob when she offers up a friend to assist with his lesson on unions, but she ends up teaching Jacob an important lesson herself.
After a negative teacher review, Janine gets a confidence boost when a student gets transferred from Melissa’s class into hers, but it turns out the student proves to be too much to handle. While trying to forge a friendship with an uninterested Gregory, it is revealed that Jacob is constantly getting roasted by his students. The two bond after Gregory unintentionally gives Jacob the idea to incorporate the roasts in an educational way.
When the school’s art teacher retires, Janine is thrilled when the replacement ends up being her best friend from college, but things quickly turn sour when Sahar gets in the way of Melissa’s class traditions. Meanwhile, Jacob and Barbara bond over their love for gardening and decide to start a school garden, but when it turns out they don’t know how to successfully grow anything, Gregory secretly gets involved to fix all of their mistakes.
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 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.”
With the school board threatening to pull their funds, Janine and Gregory decide to help Ava out with her presentation in front of the Superintendent. However, their plan is derailed when a curveball is thrown at Ava. Meanwhile, Barbara offends Melissa when she doesn’t agree with her blackmail idea.
The teachers are back at Willard R. Abbott Public School for development week, a time to prepare for the upcoming year before the students’ first day of school. Post-breakup, Janine is determined to start the year off right and leave her problems at home. With this new outlook, she takes on organizing the faculty mixer and announces a special celebrity surprise she planned for the kids’ first day. Meanwhile, Ava runs a side hustle out of the school parking lot and Gregory, now a full-time teacher, is in over his head with the curriculum.
After Janine gets a look at the new charter school down the street, she becomes determined to fix up Abbott and make it just as good. Gregory goes out of his way to avoid Barbara due to an awkward situation with his personal life, and Ava takes to the school library to host a “Shark Tank”-style pitch to decide what to do with the rest of the funds from the grant.
A traveling storytelling troupe Jacob used to be in visits Abbott Elementary for a day of education and entertainment. Jacob can’t wait to share this part of his past with his colleagues, but when he realizes they think the performers are corny, Janine does her best to help him embrace his nerdy side. Meanwhile, Melissa struggles with the new normal of her combined second and third grade class.
After Gregory sends a disruptive student to the principal’s office, he’s dismayed to find out the kids actually enjoy spending the supposed disciplinary time with Ava. Meanwhile, Melissa invites Janine over to her house to teach her how to cook, but Janine becomes determined to reunite Melissa with her estranged sister.
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.
The teachers are appalled after seeing a commercial in support of charter schools criticizing Abbott Elementary. When students begin to transfer schools, Jacob, Ava and Melissa invite the leader of the charter school organization to Abbott and ask him to take down the ad. Elsewhere, Janine and Gregory talk about Janine’s relationship with Tariq.
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.
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.
During a day of touchdowns and missed plays, the Abbott Elementary faculty find themselves learning lessons in teamwork. Two of Janine’s students aren’t getting along in class, leading her to seek advice from her colleagues on how to help repair their friendship. Meanwhile, Melissa and Ava plot to bring down Mr. Johnson in fantasy football.
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.
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.
Despite a few setbacks, Barbara is determined to make Abbott Elementary's first-ever holiday show a success. Meanwhile, Jacob's brother arrives for his visit earlier than planned.