Casey Kasem hosts a dance contest at The Max.

Lisa charges an exorbitant amount on her father's credit card and fears that he will never forgive her.

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.

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.

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.

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.

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

When Screech accidentally invents a seemingly miraculous zit cream, Zack sells it at school. However, it soon becomes clear that the cream has an alarming side effect.

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.

After discovering she is failing in science, Kelly is tutored by Screech, and soon develops a crush on him.

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

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

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.

Zach uses subliminal messages on a music tape in order to get Kelly to ask him out to a dance.

The first day of school proves eventful for Zack, Slater, Screech, Kelly, Jessie, and Lisa.

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

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.

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.

After becoming jealous of Slater's success in Driver's Ed class, Zack plots to get him into trouble, but his plan soon backfires.

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.

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.

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's winner of the Miss Bayside beauty pageant will go on to compete in the state-wide pageant of Miss High School California. The pageant stirs up controversy about sexism, in which both A.C. Slater and Screech enter as contestants to win a bet over who could win. Who will be the next Miss Bayside?

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

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.

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.

After Zack breaks the school's video camera, he and the gang pretend Screech is an alien in order to win a photo competition. However, their picture soon arouses government suspicion.

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

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

Mr. Belding's brother Rod, a substitute teacher, arrives at Bayside to teach 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.

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

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?

After finding out that Bayside's glee club will travel to Hawaii if they reach the finals of a nationwide competition, Zack signs up, and convinces the rest of the gang to join him.

Kelly gets a job as a waitress at The Max and finds herself falling for the new manager, Jeff.

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.

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 discovering that the vintage Mustang he wants to buy belongs to Mr. Carosi, Zack convinces him to lower the price by claiming that the gang can win the annual beach volleyball match, though their chances of victory seem slim at best.

After Mr. Belding inadvertently trips him, Zack ends up in hospital and requires knee surgery, which causes him a lot of worry.

Malibu Sands is preparing to hold the annual Miss Liberty beauty pageant, and Zack, one of the judges, is pressured by Mr. Carosi to rig the competition in Stacey's favor.

After Screech makes it to the all city chess finals, Zack and Slater make a bet with Valley that he will win, which soon leads to trouble.

Zack and Stacey's relationship is going well until Stacey's boyfriend from Boston, Craig, surprises her at the beach club, leaving Zack devastated.

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.

Stacey is left in charge of the beach club in Mr. Carosi's absence, and things soon turn chaotic when two different parties are double booked in the same room and the kitchen staff goes on strike.

The gang is overjoyed when oil is found in Bayside's football field, and they dream of being rich. However, they soon realize that everything has a price.

The gang's last weekend at Malibu Sands proves bittersweet, with Zack and Stacey reluctant to part from each other, and the rest of the gang preparing to head home.

Jessie's new stepbrother moves in from New York where he has tricks of his own, including bribing her friends.

After Lisa and Eric crash 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.

In an attempt to raise money for new cheerleading uniforms, Bayside holds a date auction. Zack's plan to go with a girl he finds attractive is ruined when Wendy, an overweight girl, wins him, and he tries desperately to get out of the date.

While in the mall to buy tickets to a concert, the gang find a bag containing $5,000. They decide to use it to buy as many tickets as possible and scalp them, but it appears the two men the money belongs to will do anything to get it back.

The gang take their S.A.T.s, with the results proving a surprise to some and a major disappointment to others.

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.

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.

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.

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.

Zack falls asleep before band rehearsal and dreams of the gang's band, Zack Attack, achieving worldwide fame before succumbing to jealousy and infighting.

It is Cut Day at Bayside, a day on which students traditionally skip class. Zack wants to join in, but because one more absence will mean suspension for him, Mr. Belding is determined to keep an eye on him the entire day.

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

While Zack's Mom prepares to put on the mall's production of A Christmas Carol, the gang try to help the Bentons get back on their feet for the holidays after Laura is accused of stealing.

As part of Lisa's prize for winning a radio contest, the gang travel to a secluded mansion for a murder mystery weekend. However, things soon become sinister when it appears a real killer is on the loose.

Senior year begins but quickly turns sour when Zack and Slater clash over the new girl at school.

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, Slater and Kelly clash over an exam, friendships are tested.

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.

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.

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.

The gang creates a teen line, designed to help students with their problems. Zack 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.

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.

After rigging a radio competition, Zack has the chance to win a trip to Hawaii, but his plans are scuppered when he is sent to detention for the day and his attempts to get the gang to help result in them being sent to detention as well.

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.

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 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.

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.

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

The school fights over how to spend the money that an alumni has left the school. Zack, Slater, Screech, Ox and the rest of the guys want the money for boys' sports while Lisa, Tori, Ginger and the girls want it for girl's sports. So Mr. Belding decides to settle the conflict by having a sports competition between the boys' blue team and the girls' red team. But Zack resorts to unethical tactics when he sabotages the girls' oven during the bake-off contest, and when the girls find out, they plan their revenge, leading to an all-out war between the sexes.

In order to go on a ski trip, Zack and Slater trick Mr. Tuttle into thinking Mr. Belding is against him, prompting a strike. However, their plan is so successful that it could cause the annual Academic Bowl to be canceled.

Slater is pleased when his younger sister J.B. arrives at Bayside, but his happiness is short-lived: she wants to date Zack.

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.

Zack agrees to produce Bayside's video yearbook, but betrays everyone's trust by creating a dating tape using footage of female students in order to make enough money to buy a car. When the others see the dating tape, they plot revenge.

The gang forgets Screech's birthday and decide to throw him a surprise party in Mr. Belding's office. However, after being made Hall Monitor, Screech gets his revenge by sending them to detention, jeopardizing the party.

The school puts on a hip hop version of Snow White and the Seven Dwarfs, with Zack and Jessie as the leads. However, when they seem to develop feelings for each other, they risk ruining both the play and their relationships.

To avoid a Physics test, the gang throws a baby shower for Mr. Belding's wife Becky. As they are leaving the school, an earthquake strikes, trapping Zack and Tori in the elevator with Becky, who goes into labor.

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.

Slater leaves his pet chameleon, Artie, in the gang's care when he goes away for a week. However, Slater returns to find that Artie has died, and blames them.

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 bad behavior.

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.

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.

Slater is pleased when his younger sister J.B. arrives at Bayside, but his happiness is short-lived: she wants to date Zack.

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.

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.

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.

Slater leaves his pet chameleon, Artie, in the gang's care when he goes away for a week. However, Slater returns to find that Artie has died, and blames them.

The gang creates a teen line, designed to help students with their problems. Zack 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.

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

The gang forgets Screech's birthday and decide to throw him a surprise party in Mr. Belding's office. However, after being made Hall Monitor, Screech gets his revenge by sending them to detention, jeopardizing the party.

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.

The school fights over how to spend the money that an alumni has left the school. Zack, Slater, Screech, Ox and the rest of the guys want the money for boys' sports while Lisa, Tori, Ginger and the girls want it for girl's sports. So Mr. Belding decides to settle the conflict by having a sports competition between the boys' blue team and the girls' red team. But Zack resorts to unethical tactics when he sabotages the girls' oven during the bake-off contest, and when the girls find out, they plan their revenge, leading to an all-out war between the sexes.