Graduation finds Zack one credit short, and Jessie longing to be valedictorian. Zack: Mark-Paul Gosselaar. Jessie: Elizabeth Berkley. Mr. Belding: Dennis Haskins. Lisa: Lark Voorhies. Screech: Dustin Diamond.

A retrospective set in the future has Belding showing a tape of the 1993 class to six students---who greatly resemble the old gang. Belding: Dennis Haskins. Zack: Mark-Paul Gosselaar. Lisa: Lark Voorhies.

Zack enters the school-song contest, but hits a sour note when he sabotages others' entries. Zack: Mark-Paul Gosselaar.

Slater unwittingly dooms his chameleon when he leaves it with Screech (Dustin Diamond), who in turn gives it to Zack.

It's the first day of class at Bayside High and Zack decides to play sick. When Mr. Belding sends the rest of the gang to see what he's up to at home, they start reminiscing about their summer working at the Malibu Sands Beach Club, and going to Palm Springs for the wedding of Jessie's dad.

Mrs. Belding goes into labor after an earthquake traps her in an elevator with Zack and Tori.

A rap staging of "Snow White and the Seven Dorks," with Jessie as Snow White, Zack as the Prince and Lisa as the Talking Mirror.

The gang throws a postbirthday party for Screech

Zack tapes events for a video yearbook, then sells a controversial video-dating tape made from his interviews with Bayside girls.

It's time for the senior prom, but problems loom: where will they get the money, and who will go with whom?

Slater just can't see his sister dating Zack.

Zack and the gang are all for the teachers' strike---until they learn it would cancel an academic championship.

The girls and the guys have a battle of wills over how to spend money left to the school by an alumnus.

It's Valentine's Day and Zack and his friends spend the day reminiscing about past loves and they romantic dates they've been on. 

Zack draws the ire of the senior class when the great deal he got on their class rings is too good to be true and turns everybody's fingers green. Zack then turns to Screech for help in getting revenge on his ring dealer.

Slater is horrified when his girlfriend from Germany arrives at Bayside as a new student. Zack helps hide the relationship from Jessie, but it is only a matter of time before she finds out, and Slater must figure out where his heart lies.

The gang learn about the dangers of drinking and driving when, after getting drunk at a party, they get into an accident in Lisa's mother's car and try to cover it up.

Slater is offered a wrestling scholarship at the University of Iowa, but finds it difficult to tell his father, who wants him to go to West Point.

After getting caught using his cellular phone on campus one too many times, Mr. Belding gives Zack detention. He then devises a plan to sneak out and make it to the Max in order to win a trip to Hawaii.

As the annual masquerade ball approaches, Zack and Slater make a bet about who can kiss Tori first. However, when she discovers their scheme, she decides to get revenge, while Screech's love letters to Lisa cause all manner of mix ups.

The gang creates a teen line a teen line, designed to help students with their problems. Zach takes a call from a girl named Melissa and asks her out, but is taken aback when they meet up and he discovers that she is in a wheelchair.

When Lisa receives word that a recruiter from FIT wants to interview her, the gang help her put on a fashion show at The Max. However, the close working conditions mean Zack and Lisa grow close, leaving Screech brokenhearted and bitter.

A new girl, Tori, arrives at Bayside and after she takes his parking space, Zack immediately squares off against her. However, she soon develops a seemingly unrequited crush on him.

The gang produce a television show for Communications class, with the sauce Screech makes during the cookery segment proving a hit. They decide to market it, and Screech gains a girlfriend, but he refuses to believe she is using him.

When the gang take part in a student-teacher exchange program, Zack becomes principal, Kelly a History teacher and Screech and Lisa the gym teachers. However, when Zack, Screech and Kelly clash over an exam, friendships are tested.

The gang begin their senior year, but rather than it being a positive time, things turn sour when Zack and Slater clash over the new girl at school.