Jack's students steal his Harvard pen. Principal Durbin fails the superintendent's inspection.

The college fair comes to Whitlock, and Sarika has an offer to Jack: Get her into Harvard, and she’ll get his book into the hands of her publisher aunt. Meanwhile, Stef prepares for a visit from a fling, Helen applies to college, and Durbin tries to cement his legacy. Season finale.

After his computer breaks, Jack rallies his class to win the annual Whitlock's Got Talent competition so the prize money can go towards a new laptop. Helen and Durbin put on their best tuxes to host while Mary, Stef and Michelle prepare a hand-bell routine.

When one of Jack's students anonymously reports him for canceling their much-anticipated fetal pig dissection, he sets out to find the snitch. Durbin's chances at Principal of the Year are in jeopardy when the superintendent visits.

In the hectic thirty minutes that start every day at Whitlock, Jack tries to retrieve his massage chair from Whitlock's intriguing payroll accountant, Lynette. Durbin and Helen prepare for the morning announcements. Michelle gives a eulogy.

When budget cuts threaten to gut Whitlock and put his job in jeopardy, Jack recruits Mary, Stef, and Michelle to take down the Superintendent. Durbin plans an appeal to the heart, while the students plan an appeal to the soul.

Jack accidentally loses a significant amount of money and it falls in the hands of the students. As Principal Durbin and Helen investigate who stole the money, the students and teachers admit to other wrongdoings.

It's the most exciting time of the year at Whitlock: Durbin's birthday and Spirit Week. Jack does his best to steer clear of any school spirit as everyone else comes together to take down their hated rivals at Prairie High.

Jack finds out his ex-girlfriend Meredith needs a venue for a charity fundraiser and has the perfect place: his student Victor's house. Victor and the other kids are inspired by Jack to party for the first time.

Jack takes interest in a revenge mission on behalf of the kids; Mary, Stef and Michelle believe they've discovered an otherworldly presence.

After an embarrassing video of him falling off a stage goes viral, Jack plans a viral video of his own. Durbin, Helen and the teachers track down Whitlock's most notorious litterer: The Sugar Daddy.

Jack's war with his neighbor reaches a turning point when it threatens to ruin a date with Lynette. When the school photographer ups his rate, Durbin takes school pictures into his own hands.

As the school prepares for winter break, Jack tries to record a lecture on Thoreau's transcendentalism as a way into the University of Wisconsin's philosophy department. Frustrated and unable to finish the video, he falls asleep and has nightmares.

A tornado puts the school on lockdown. The kids write fan fiction about faculty members.

Jack attempts to get closer with the guys at work. Helen helps Principal Durbin grow a backbone.

Principal Durbin takes it upon himself to help Jack advance his book with an appearance on Toledo's morning TV show but lets his five minutes of fame get the best of him. The other teachers lead a competition within the Young Entrepreneurs Club.

A jealous Jack crashes his girlfriend's dinner with a male friend. Helen rebounds after a breakup.

Victor sends Ashlanda a risqué photo. Grace and Anthony try to set up Mary and Principal Durbin.

Jack tries to expose his allegedly reformed deadbeat dad. A witch shakes up the Whitlock High staff.

When Jack leaves his class unattended, a student injury sets off an official investigation and lands Jack in "teacher jail." An aggressive teacher's union rep sets her sights on Principal Durbin. The students' excitement for a substitute teacher are dashed when they find out it's Helen.

Jack has Mary drive him to the doctor, but a prank results in him getting the same procedure twice. At school, Durbin and Helen embarrass themselves and the kids compete over class superlative titles.

When Jack casually gives Durbin some marriage advice, it backfires, gets Durbin kicked out of the house, and Jack takes him in. The A.P. Bio kids tell Jack if they can get Miles' DNA, they'll learn a little biology while pulling off the ultimate revenge.

Jack Griffin is a Harvard philosophy scholar who loses out on his dream job and goes to work as a high school Advanced Placement biology teacher in his hometown of Toledo, Ohio. He quickly makes it clear he will not be teaching any biology, however, and, realizing he has a room full of overachieving honor roll students at his disposal, decides instead to use the kids to enact revenge on his rival and take the job that is rightfully his.

Jack is aghast to learn he didn't make the Top 10 in Toledo's Top 100 Bachelors, and Durbin did. Victor and Eduardo decide it's time to reveal their feelings to their crushes.

Principal Durbin and Helen sweep lockers. Jack finds out that Anthony has been lying about his extracurricular activities. Jack and Lynette follow Anthony to find out what he's really been up to. The search for Stef's baby donor intensifies.

When Jack gets into a petty dispute with the student council president, the situation escalates much too far; Stef sells makeup at school as a side business.