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.

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.

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.

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.

When Bayside's rival school, Valley, revives the schools' ongoing prank war, the gang tries to get even.

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.

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?

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

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.

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.

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.

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.

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.

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.

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

Zack and Stacey's relationship is going well until Stacey's boyfriend from Boston, Craig, surprises her at the beach club, leaving Zack devastated. Also, it's the annual ATV race and the gang decides to participate in it.

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.

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.

When Zack tries to win Kelly's heart through the use of subliminal messages, the plan ends up severely backfiring on him.

After a heated debate about the school calenders, a photographer decides to use Jessie, Lisa and Kelly in a photo shoot where Kelly is chosen as the winner of a contest that'll make her famous in France.

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 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.

When Lisa charges too much on her father's credit card, her friends help her cook up a scheme to sell her belongings so that she can pay back the bill.

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

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 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.

Following a mix up, Kelly has to bring her baby brother Billy to school, and the gang must look after him.

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.

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.

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

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

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

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.

If Zack wants to run the track meet, he better prepare his ancestry report where he gets help from an Indian.

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.

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.

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.

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.

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.

Transfer student Tori is introduced in this episode, but Zack and Tori don't hit it off, and they are paired up for an ad project. Lisa alienates the Dance Committee before the Fall Ball.

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.

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.

Stacey is left in charge when her father is away. Everyone is pitching in to help her, but gold fever hits the beach, someone accidentally booked two parties at the same time, and the chefs decide to go on strike.

Zack bets Carosi that if he wins a volley ball game, Zack can buy Carosi's car. But Zack's team seems to be short handed when the star player is injured.

Zack stays over at Screech's place for the weekend where the two of them along with Slater throw a party which is interrupted by the girls before breaking off a valuable item from Mrs. Powers.

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.

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

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

Zack agrees to go on a date with Mr. Belding's niece Penny, but when Kelly invites him to her birthday party, he sends Screech instead.

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.

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.

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.