A famous film star comes to Bayside to shoot an anti-drug public service announcement. The gang are enchanted by him, but when they go to a party at his house, they discover he is a hypocrite.

Bayside holds it's annual beauty contest. Jessie thinks it's sexist, even when Screech enters, but Belding says that it's only for girls.

Due to Lisa's parents pulling some strings, the gang land summer jobs at Malibu Sands beach club, but Zack soon clashes with the owner Leon Carosi, and his initially abrasive daughter, Stacey.

As graduation approaches, Zack learns that he is just one credit short of graduating. Desperate to get extra credit, he joins Bayside's ballet company, and when illness strikes some of the other cast members, he calls on the gang for help.

Zack learns that his new girlfriend is the homeless man's daughter. When she decides to get her dad a new coat and it turns up missing, her boss Mr. Moody accuses her of stealing it.

A.C. and his father fight over where he should attend college and Zack tries to fix it. Jessie becomes a cheerleader and worries about college acceptances.

The school holds a dance-date auction to pay for new cheerleading uniforms, where Zach, Slater and Screech are up for auction. Jessie is appalled at the whole idea. Lisa becomes an intellectual to impress a smart boy.

The gang is forced to choose between supporting Kelly's relationship with Jeff and helping Zack cope with his grief over their break up, while Lisa plans her sweet sixteen party.

In an attempt to make money, Zack sets up a 900 number hotline, with Lisa offering advice to the students of Bayside. However, things go awry when Zack decides to keep the line running by dishing out bad advice.

Mr. Belding's brother, Rod, a substitute teacher, arrives at Bayside to take the gang's History class. Rod proves instantly popular, and soon Mr. Belding is dismayed to find that the kids prefer his brother to him.

Jessie's self-esteem takes a dive when she gets 1200 on the SAT's, while Zach gets 1502, and her chances to get into "Stansbury" College are hurt, so Zach hires James to help.

A.C. Slater and Jessie are finally a couple, but messes it up by disagreeing about how they will celebrate their coupledom, football versus ballet. Zach makes all the wrong moves by getting jealous of Kelly going out with an ex-boyfriend. After a fight breaks out at school, Mr. Belding tries to set the example of how couples should communicate, and after failing miserably, sides with the boys. Neither the guys or the girls want to be the first to apologize, but are miserable without their counterparts. Can Slater and Zach make up for their shortcomings to their girls before it's too late?

When Mr. Belding tells Zack that he would like to see his father to discuss his bad grades, Zack hires an actor to play his father. However, things soon become complicated.

Jessie turns to caffeine pills to keep up with her studies and her new singing group, Hot Sundae.

Zack participates in a Bayside's teen hot-line, and becomes close to a disabled girl. Meanwhile, Screech takes on a rambunctious boy.

After Lisa and Eric crashes Mr. Belding's car, Zack and the boys must find a way to repair the car before Belding returns; meanwhile Jessie still disapproves of Eric hanging out with Lisa.

The gang travel to Palm Desert for Jessie's father's wedding. His job as manager of a luxury hotel there guarantees them wonderful accommodation, but Jessie takes an immediate dislike to her father's much younger bride.

Zack begins dating a college girl named Danielle, and asks Screech to make fake IDs in order that they can hang out with her at a club. However, things become complicated when the guys see Kelly's boyfriend, Jeff, there with another girl.

Zack, Slater, Screech, Kelly and Jessie are working at the mall for the holidays, where they befriend a homeless man and his daughter.

As the wedding approaches, Jessie desperately tries to sabotage things, Zack and Kelly grow closer, Screech's quest for a date continues, and Slater attempts to impress Christina and her father.

Zack enlists Screech to tutor Kelly, when he finds out that she needs to pass an upcoming science test in order to go to a concert with him. When Screech and Kelly begin spending more time together than he'd expected, it makes him uncomfortable.

After the school's drama teacher falls ill, a handsome substitute arrives, and quickly captivates the girls, much to the chagrin of the boys.

It's student-teacher week. Mr. Belding and Zack switch places. Kelly is Slater's History teacher, but Slater thinks she's being too serious about it. When she gives the class a test and everyone skips out on it, Zack faces a hard decision: to be their friend or their leader.

To go on a ski trip, the gang conjures up a teacher's strike only to learn that it could affect the academic bowl.

Zack sprains his knee before the big basketball game, and while in hospital learns that Lisa is a part-time candy-striper. However, he also learns that he will need surgery to repair his knee and worries that it may go wrong.

In an attempt to find out who Kelly wants to take to a dance, Zack and Screech bug the girls' sleepover party and the girls get revenge.

The gang wins a mystery weekend at a mansion where they are all part of a murder mystery.

In 2003, the senior class find a video time capsule buried by the gang in 1993 before graduation, and Mr. Belding, still Bayside's principal, watches it with them.

In an attempt to cheer Screech up enough to complete their science project, Zack pretends to know a girl who is interested in Screech, but things soon become complicated.

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.

When Kristy, a new student, is not allowed to join the wrestling team because of her gender, Zack and Jessie campaign for her to be given a chance. However, Jessie soon mistakenly becomes convinced that Kristy is interested in Slater.

Zach finds $5000 in the mall, and plans to use the money to buy and then scalp tickets for a U2 concert.

On Valentine's Day, the gang reminisce and share memories of love and past romance.

Zack and Kelly's relationship is going from strength to strength, but is soon jeopardized when Zack falls for the new school nurse.

Zack appears to have negotiated a great deal on class rings for the senior class, but it turns out he has been scammed. While he plots revenge, a misguided bet between Tori and Lisa leads to Screech falling for Tori.

Zack's plans of winning over Kelly Kapowski on the first day of high school are foiled when new transfer student, A.C Slater, also competes for her.

Zack, Slater, Screech and Lisa reminisce about their summer working at Malibu Sands beach club and attending Jessie's father's wedding in Palm Desert.

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.

During Career Week at school, Slater worries that continuing to focus on wrestling will not lead to a successful job. As a result, he quits the sport, worrying Zack, who has bet on Slater winning his next match.

As part of an assignment for Business class, the gang forms a friendship bracelet company, but infighting soon leads to trouble and defection.

When Zack finds out that the elected student council president gets to leave school for a trip to Washington D.C., he runs against Jessie.

After Screech gets struck by lightning, he gains the ability to see into the future, and Zack uses him to cheat on a mid term exam.

As part of a class project, Zack and Kelly, Slater and Jessie, and Screech and Lisa are paired up in mock marriages.

It's the last day at the beach resort. Zack and Stacey are hoping to have one last time together, but Mr. Carosi doesn't approve of their romance. Meanwhile, a secret admirer is sending Slater some love letters.

Slater is pleased when his younger sister J.B. arrives at Bayside, but his happiness is short lived, as she wants to date Zack, and Slater does not approve.

As the senior prom approaches, Zack discovers he still has feelings for Kelly. However, she already has a date, and Zack resorts to skulduggery to win her hand, while romance brews elsewhere.

The senior class want to leave a gift to Bayside's future students and suggest a contest to come up with a new school song. However, Zack decides to rig the competition in his favor in order to be remembered for more than just his bad behavior.

Casey Kasem hosts a dance contest at The Max.

When his father is offered a transfer to Hawaii, Slater must decide whether to move there or stay at Bayside, and Zack takes full advantage of the situation.

The gang unearths Bayside's old school radio station and begins broadcasting again, before learning that The Max is to be closed if Max does not manage to pay $10,000 in back rent.

Zack asks Kelly to be his date for the prom and she agrees, but when her father loses his job, she decides family is more important and gives up her chance to go, but cannot bring herself to tell Zack.

In order to avoid detention, Zack agrees to take part in a pilot program organized by the California Cadet Corps, but Army life proves to be much more difficult than he imagined.