List of Saved by the Bell episodes

A major dance contest held at The Max is set to be hosted by Casey Kasem and televised on NBC (the network behind Saved by the Bell in real life). Meanwhile, a girl named Jessie Spano (Elizabeth Berkley) is self-conscious of her height.

Lisa (Lark Voorhies) uses her father's credit card as a reward for doing well in school, but she goes overboard with her spending, and the gang must help her think of how to make money to defray her debt.

When Screech (Dustin Diamond) is hit by lightning, he gains the power to see into the future, which Zack (Mark-Paul Gosselaar) and his friend, Slater (Mario Lopez), use to their advantage. Zack uses Screech's ability to place bets with Slater, including one that he would get an A in history, but things wear off before he can help Zack cheat.

The big dance is approaching and Zack must get the popular and beautiful Kelly Kapowski (Tiffani-Amber Thiessen) to go with him, so he goes as far as bugging Jessie's room while her, Kelly and Lisa are having a sleepover. To Zack's shock, the girls see it and decide to swear revenge by making it look like Kelly is insane.

Zack says Screech needs a girlfriend and proceeds to get him one. However, when there is not anyone willing, he dresses up as a girl and goes out with Screech, but he has to act fast when Screech takes a "liking" to him.

When Slater's dad is transferred to Hawaii, Zack sees it as a perfect opportunity to get Slater to move away so all the attention from the girls comes back to him. As a result, Zack ends up making it seem as though Slater is dying to the girls, but things backfire when Kelly knows the truth after Zack steals Slater's trophy.

When Ms. Simpson strains her back, a substitute teacher named Tony Crane takes over her class. However, when all the girls--including Lisa, Jessie, and Kelly--fall for Mr. Crane, Zack and Slater are jealous, so they try to make it seem as though Crane is married, and Crane plays along after he finds out what the girls were trying to do.

When Kelly is nominated as homecoming queen, her dream is shattered after she gets a zit. Zack comes up with a solution, but it backfires.

Zack bets against a Valley wrestler named Marvin Niedick that Slater will win the match. However, things go wrong when Slater quits wrestling out of possible fear to join cooking club. Screech stands in for him; but since he is not cut out for wrestling like Slater, it fails.

In order to go see George Michael in concert, Kelly must pass a science test. Zack persuades Screech to tutor Kelly, a ploy which is more for his benefit however. When Kelly and Screech's friendship becomes closer thanks to this, Zack (and Slater) are jealous, thinking that Screech and Kelly are in love.

The gang sells friendship bracelets for a business class project. Zack names himself as "boss," but Kelly, Jessie, and Slater feel he is pushing them too hard, leading them to leave to form a rival company selling a similar product.

For assignment, everyone is in pairs and acts out married life to prepare for adulthood: Zack and Kelly, Jessie and Slater, Screech and Lisa. However, Slater tries to ruin Zack and Kelly's "marriage" with Screech's aid, because he wanted to be married to Kelly.

Zack and Jessie are running for class president, but Zack only wants to run because he wants to win a trip to Washington, D.C., the home of the President of the United States (at the time, George H. W. Bush). When the trip is canceled, Zack must prove he was not running just because of it.

During class, Zack learns subliminal advertising and sees that it can be used to trick Kelly into dancing with him. However, Kelly is on to his ploy and she and the girls decide to teach Zack a lesson, which leaves him humiliated.

Zack starts high school at Bayside hoping to finally win his longtime crush, Kelly Kapowski, the prettiest cheerleader in school. However, A.C. Slater, a new transfer student, hits on her, resulting in a love triangle between Zack, Slater, and Kelly.

Zack and Slater are involved in the annual prank war against Valley, which takes place the same time as the big cheerleading competition between the schools. Screech is the Bayside mascot and has an important part in Bayside's routine. However, after Zack and Slater kidnap Valley's mascot, two students from Valley kidnap Screech. Fortunately, their plan is ruined when the fake mascot ends up winning the competition for Bayside.

When Zack gets to go to Prom with Kelly his dream seems to be fulfilled. However, Kelly finds out that her father has lost his job, causing a financial hardship that makes her unable to make it to the prom; but Zack makes it up to her in the end. Meanwhile, Jessie and Slater end up going to prom together, while Screech finally manages to take Lisa on a date to the movies. However, Lisa's constant chattering on their movie date becomes a nuisance and therefore a turnoff for Screech and he declines to take her to the prom. At the end of the episode, Zack and Kelly have their first kiss.

In order to make Zack change his ways, Mr. Belding forces Zack to join the Army Cadet Corps. Zack manages to persuade the others to join him, but he leaves them high and dry when they are not prepared for a competition.

Zack and Screech discover the room where Bayside High's radio station KKTY was housed. The station had been pulled off the air because of Mr. Belding's antics as DJ during his Bayside student days, but the gang successfully convinces him to put KKTY back on the air. Zack becomes the main DJ, Kelly hosts "Desire Hour," Screech tells creepy stories on his "Mystery Theater", Lisa hosts the gossip segment, Jessie reads the latest news, and Slater ineptly handles sports. Slater quits when he finds out everyone thinks he is a bad sports announcer, but returns just when the gang needs him most.

Fearing that Kelly would rather go steady with Slater if he learned to drive first, Zack plots to make Slater fail his driver's training. This leads to Slater having an accident in the practice car and a locker falling on Kelly. When she realizes who was behind the crash, she makes out her injury to be worse than it really is.

When Screech's parents leave him alone in the house while they visit Graceland, the gang accidentally breaks his mother's Elvis statue. In order to afford a replacement, they plan to hold a fund-raising party so they can hurry to get the statue before his mother returns home and finds out what happened.

Mr. Belding's niece Penny is in town, and he forces Zack to take her out. Zack, however, wants to attend Kelly's party instead, so he makes Screech pretend to be him and take Penny out. Meanwhile, Lisa finds a date for Jessie, but Jessie is too self-conscious about her height to have a good time.

In order to raise money for a school ski trip, the gang decides to organize a carnival. Zack has been failing, and Mr. Belding wants to conduct an interview between himself, Zack, and Zack's father. Not wanting Belding to call his father anymore, Zack hires an actor to impersonate his dad, but the plan backfires when the real Mr. Morris and Mr. Belding bump into each other at the carnival.

Zack and Slater make a bet on who can win the Miss Bayside Beauty Pageant and Zack bets that Screech will win. Jessie protests about the pageant and thinks that a male winner would be fair.

Jessie turns to caffeine pills as a result of the pressure with midterms and her singing group, ignoring Slater's warning that the pills can damage her health. When Zack finds out about her problem, he cancels her performance and rushes to her side.

Zack convinces Belding to fire the nerds who run the school store so that the gang can reopen it as a "cool" store. Unfortunately, no one wants to come in; so as a scheme to attract customers, Zack and Screech secretly take pictures of the girls' swim team to sell in "The Girls of Bayside" calendars. A professional model photographer happens to see the calendar, and invites the girls for a professional photo shoot; but only Kelly is picked for an on-location shoot in Paris, which leaves Zack out in the cold.

Zack's new money-making idea is to give relationship advice to fellow students, with the help of Screech and Lisa. However, the plan fails when Lisa quits and he has to take over. As a result, he gives bad advice to various students, and is forced to deal with the consequences when a case of mixed-up phone calls puts Zack in the middle of Kelly and her sister.

Zack and Slater break the school's professional camera and hatch a plan to make quick money to pay for a replacement before Belding finds out. A tabloid is offering money for photos of real aliens, so they dress Screech up as an alien in order to fool the tabloid. A special agent with the government is more than convinced that Screech is an alien.

Zack fails his family heritage presentation. Unless he can make it up, he is off the track team. His teacher Miss Wentworth arranges a tutor for Zack named Chief Henry, who happens to be a Native American. Zack soon learns about his own Native American heritage, but does not feel like going to the upcoming track rally when tragedy strikes.

Kelly leaves her infant brother Billy in the care of the gang while she gets her school picture taken. However, while they are babysitting, Kelly injures her arm, and the gang is left to care for baby Billy throughout the school day.

The gang find themselves in trouble when an obnoxious teacher bans them from the class field trip unless they pass a test. On the day of the test, the teacher does not show up, so Mr. Belding's younger brother, Rod, takes over and offers to take the class on a special field trip. This makes him very popular, but Mr. Belding acts very coolly towards Rod and Zack accuses him of being jealous of his brother. However, on the evening when the class trip is due to leave, Rod's true colors are revealed when Zack overhears that he has made other plans to spend the weekend with a stewardess. Mr. Belding breaks the disappointing news that Rod will not be taking everyone on the trip, but offers to step in and take them instead. While the gang is unaware of the truth, Zack tells Mr. Belding that he knows about Rod's date and apologizes for being rude to him.

Zack asks Kelly to go steady with him, but while she is thinking it over, he falls for a (supposedly) new student (Nancy Valen), only to discover that she is actually the new school nurse. Meanwhile, Slater is afraid of getting his flu shot.

It is a bad day for couples as Zack and Kelly and Slater and Jessie respectively split up after a series of disagreements. Although neither party will be the first to apologize, they are miserable without each other. After Belding also has a tiff with his wife, the guys are left spending time with him while he is kicked out of his house, making matters worse. Eventually Zack and Slater realize they must help Belding reconcile with his wife, while reconciling with Kelly and Jessie.

The gang joins Screech's girlfriend Violet (Tori Spelling in one of her early roles) in the glee club in order to go to a competition in Hawaii. It seems that shy Violet is the only one with a voice, aside from Jessie (who caught Lisa's flu and is unable to sing). After Screech makes a fool of himself in front of Violet's parents, they forbid Screech to see her, and she quits the glee club.

Desperate to afford a stunning dress for the Bayside Costume Ball, Kelly takes a job as a waitress at The Max. While working, she spends significant time with the new, older manager, Jeff Hunter (Patrick Muldoon), Despite her long-term relationship with Zack, Kelly finds herself increasingly attracted to Jeff’s maturity and charm.

As the chemistry between Kelly and Jeff becomes undeniable, Kelly is consumed by guilt. The tension reaches its breaking point at the Costume Ball. After sharing a dance with Jeff, Kelly realizes her feelings for him are real and that she can no longer stay with Zack. In a heartbreaking scene on the terrace, Kelly tells a devastated Zack that their relationship is over. The episode ends with the iconic, somber visual of Zack watching Kelly walk away while the rest of the school celebrates inside.

The gang begins their summer vacation working at the Malibu Sands Beach Club. While most are excited, they quickly find themselves at odds with the resort's demanding and short-tempered owner, Leon Carosi(Ernie Sabella). Meanwhile, immediately sets his sights on Carosi's daughter, Stacey (Leah Remini) who has just arrived from New York.

The "romance" gets off to a rocky start due to Stacey's abrasive and arrogant "New York attitude," which leaves Zack questioning his interest. The tension peaks when Mr. Carosi leaves Stacey in charge for the day. She takes the responsibility too far, bossing the gang around and making their jobs miserable. However, after a series of management mishaps, Zack and Stacey find common ground, leading to the start of their summer-long "will-they-won't-they" relationship.

Following their breakup at the costume ball, Zack is devastated to learn that it is Kelly’s birthday and she is spending it with her new boyfriend, Jeff Hunter. When the gang takes Zack to the movies to cheer him up, they run into Kelly and Jeff on their date. In retaliation, Zack begins a series of "rebound dates" with multiple girls, intentionally flaunting his social life to make Kelly jealous.

The conflict deepens when the rest of the gang—Slater, Jessie, Lisa, and Screech—openly side with Zack. Because they see Jeff as an outsider and an "older man" who broke up the school's golden couple, they begin to ostracize Kelly. She finds herself excluded from group activities and treated with coldness by her best friends, who view her relationship with Jeff as a betrayal of Zack.

The tension culminates at Lisa’s Sweet Sixteen party. Kelly initially hesitates to attend due to the group's hostility, but she eventually shows up with Jeff. After seeing Kelly’s genuine sadness over being ignored by her friends, Zack has a change of heart. He realizes his retaliatory behavior is hurting her and uses his influence to convince the gang to stop freezing her out, marking the first step in their transition from a couple to just friends.

At the Malibu Sands Beach Club, Zack Morris becomes obsessed with a vintage 1966 Mustang. After discovering the car belongs to his mean-spirited boss, Mr. Carosi (pre-The Lion King Ernie Sabella) Zack convinces him to sell it for a lower price by betting on the outcome of the annual beach volleyball match against the rival North Beach Club. Carosi agrees but warns that if the gang loses, they will all lose their jobs.

To ensure a win, Zack recruits a tall, talented ringer named Gary. However, Gary shows a distracting interest in Kelly, and disaster strikes when Screech accidentally breaks Gary's foot right before the tournament. Desperate for a sixth player, the gang cycles through several ineffective replacements before Stacey Carosi (Leah Remini) steps up to play.

Before a critical basketball game against rival school Valley, Zack Morris suffers a knee injury after Mr. Belding inadvertently trips him in the hallway. Zack is rushed to the hospital, where he discovers that Lisa Turtle is volunteering as a candy-striper under the supervision of her mother, Dr. Turtle who is a surgeon at the hospital.

When Zack learns he requires surgery, he becomes paralyzed by fear. In an attempt to scope out the operating room and ease his nerves, Zack poses as a surgeon, wearing a gown and mask to sneak into restricted areas. His ruse is eventually discovered, but Lisa manages to calm him down by revealing that her mother will be performing the procedure. Meanwhile, a guilt-ridden Mr. Belding offers to help Zack with his schoolwork by taking a math test in his place, though he only manages to score a mediocre C-.

The episode reaches its climax during the basketball game, which Zack watches from his hospital bed. Slater and the team struggle in Zack's absence. In a final, desperate play, Slater is distracted by Mr. Belding repeatedly shouting his motivational advice to "shoot for your hopes and dreams." The distraction causes Slater to miss the winning shot, and Bayside loses the game to Valley. Despite the loss, the gang celebrates in Zack’s hospital room after Dr. Turtle successfully completes his surgery, and Zack begins his recovery with the support of his friends.

As the Fourth of July approaches at the Malibu Sands Beach Club, owner Leon Carosi appoints Zack Morris as a judge for the annual Miss Liberty beauty pageant. The situation becomes complicated when Carosi pulls Zack aside and demands he rig the contest in favor of his daughter, Stacey threatening Zack's summer employment if she doesn't win. Despite the pressure from Carosi, Zack chooses to judge fairly. Kelly is crowned Miss Liberty, causing an initial rift between Zack and Stacey. However, Stacey eventually admits she didn't want to win through cheating, and Carosi gains a grudging respect for Zack's integrity, allowing him to keep his job. Meanwhile, the beach club staff and members compete in a series of "endurance games," providing a competitive backdrop to the holiday festivities.

As the annual chess championship competition between Bayside and rival school Valley approaching, Valley decides to sabotage Screech, Bayside's undefeated champion. Screech attributes his success to a "lucky beret" given to him by his girlfriend, Violet. Valley sends a student to pose as a reporter for Chess Boy magazine to lurer Screech into a trap and steal the beret" causing him to lose his confidence and concentration

Meanwhile, Zack and Slater have placed a large bet on the match. To ensure their victory after Screech's slump, they attempt to pull "the old switcheroo" with Valley's star player, a student from Russian exchange student named Peter. They kidnap the student and plan to have Zack pose as the opponent to throw the game. However, Screech eventually realizes that his skill comes from within and from Violet's support, not a hat. He insists on playing the match fairly against his actual opponent, ultimately proving his talent without the need for the lucky charm or Zack's schemes.

As Zack Morris and Stacey Carosi begin to grow closer during their summer at the Malibu Sands Beach Club, their relationship is tested by the arrival of Stacey's ex-boyfriend, Craig Strand (Benjamin King). Craig, a wealthy college student from the East Coast, immediately intimidates Zack, who begins to feel inferior and "heartbroken". Zack attempts to compete with Craig for Stacey's attention, but his jealousy nearly jeopardizes their connection. Ultimately, Stacey affirms her preference for Zack over Craig’s prestige.

In the episode's B-plot, the beach club organizes its annual ATV race. Jessie Spano, motivated by her activist nature and desire for gender equality, enters the competition to prove to Slater and the others that she is "as good as a man" in a high-speed race. While the race provides a high-energy backdrop to the weekend's events, it serves to highlight the ongoing competitive dynamic between Jessie and Slater.

Zack falls for a college girl named Danielle when she drops by The Max to use the phone because she is stranded with a flat tire. In an attempt to impress her, Zack offers to change Danielle's tire, lies about his age and then makes fake IDs so that he, Slater, and Screech can sneak into The Attic, an over-18 nightclub where Danielle is a regular patron. However, they get a big surprise when they see Kelly's boyfriend Jeff there dancing with another girl. The boys, along with Jessie and Lisa, decide to make a return visit with the intent to catch Jeff in the act. They do; and just as they are about to bust Jeff, Kelly unexpectedly shows up and catches Jeff embracing the other girl in a slow dance. Kelly then confronts Jeff and breaks up with him. During all of this, Zack's mom finds out that the boys had snuck out from a supposed sleepover to go to The Attic. Just as Danielle shows up at The Attic, Zack's mom is there to bust the boys.

When Leon Carosi leaves the Malibu Sands Beach Club for a day of business, he places his daughter, Stacey, in charge of the resort. Although Stacey is initially confident, she quickly becomes overwhelmed by a series of management disasters. The primary crisis involves a double booking: Stacey discovers her father has scheduled the Thornhills' 50th Wedding Anniversary and a Sweet Sixteen party for a girl named Jeanie Richter in the same room at the same time. Zack Morris assists by attempting to negotiate with both parties, eventually convincing the younger group to move their celebration to the beach. However, the situation worsens when the entire kitchen staff goes on strike over a pay dispute, forcing Zack and the gang—none of whom have professional culinary skills—to take over the kitchen to feed both groups of guests.

While construction workers are installing a new goalpost on the Bayside High football field, they strike oil. The discovery causes immediate "oil fever" among the students and staff. Zack and the gang (except for the environmentally conscious Jessie) become obsessed with the potential riches, imagining a future where they are incredibly wealthy and Bayside is a luxury estate.

The excitement is short-lived when the drilling leads to a major oil spill that contaminates the school's football field and a nearby nature pond. The disaster directly impacts a biology project the class was working on involving pond animals. Zack, who had been nursing an injured white duck named Becky back to health, finds her covered in oil following the spill. Despite the gang's desperate efforts to clean the animals, Becky dies, which serves as the emotional turning point for Zack.

Realizing that the environmental and personal costs far outweigh the financial benefits, the students turn against the drilling. They interrupt a meeting between school officials and oil executives with a presentation showing how the drilling equipment would destroy the campus. Ultimately, the gang convinces Mr. Belding and the school board to cancel the drilling contract to save their school's environment.

As the final weekend at the Malibu Sands Beach Club begins, Zack and Stacey face the reality of their summer romance ending as she prepares to return to Boston. The tension peaks when Leon Carosi finally discovers their relationship, leading to a heated confrontation between him and his daughter that causes Stacey to briefly move out. Zack eventually orchestrates a reconciliation between the two during a staff photo, helping Carosi realize that his protective nature was pushing Stacey away.

Jessie meets her new stepbrother, Eric, but soon discovers that he has a dark side, as he uses blackmail to get his way. Meanwhile, Eric takes a liking to Lisa, and Zack and Slater decide to get their revenge on Eric by setting him up to get caught driving Mr. Belding's shiny new red convertible while on a date with Lisa. Things go awry, however, when Eric lets Lisa drive the car and she gets blinded by the flash of the camera that the boys use to take a picture of Eric in Belding's car, causing her to crash into a wall.

Eric learns that Zack and Slater paid Lisa off to go out with him in order to get him into trouble for driving Mr. Belding's car, and when Eric confronts Lisa about it, she is crushed--because she actually fell in love with him. To get back at the guys, Eric has the auto mechanic class take the totaled car apart. When Jessie finds out, she confronts him about it and demands that he fix the car. When Eric refuses and gives her trouble by calling her a "chick," Jessie gives him a black eye for being a sexist and tells him that she wants him out of her life. To make amends, Eric puts Belding's car back together himself so that Zack and Slater do not get into trouble, and apologizes. Regardless of what happened, Lisa tells Eric that she likes him and would like another date with him.

A "date auction" is held by the school to raise money for new cheerleading uniforms. Jessie is not keen on the idea of a "meat market," and forbids the girls to bid on Slater. Lisa changes her image to bag her bookworm boyfriend, but is disgusted when she learns that he hates her friends and dumps him. Meanwhile, when an overweight girl bids on Zack and wins, he has to deal with the consequences when she finds out that he has been making excuses to avoid going out with her. Realizing it would have been better to be honest with her, Zack apologizes for his actions and agrees to be her date.

After a failed attempt to buy tickets to the U2 concert, Zack and the gang find $5,000 abandoned at the mall, but things do not work out when the gang is chased by "mobsters" around the mall, until they found out the truth.

As the Bayside High students prepare for their S.A.T.s, Jessie Spano is consumed by the need to achieve a near-perfect score for admission into her dream school, Stansbury University. To her shock and devastation, the results reveal she scored 1205, while the usually underachieving Zack Morris scored an elite 1502. This score eventually helps Zack gain acceptance to Yale University in his senior year.

The situation escalates when a recruiter from Stansbury visits Bayside. The recruiter is immediately impressed by Zack’s high score and offers A.C. Slater a football scholarship, but shows zero interest in Jessie due to her lower score. Jessie's self-esteem plummeting leads Zack to hatch a scheme to help her. He hires James, an actor and waiter from The Max, to impersonate a recruiter from Harvard University. James's role is to aggressively "scout" Jessie in front of the Stansbury recruiter, making her appear like a highly sought-after candidate and forcing Stansbury to compete for her enrollment.

Parallel to the college drama, Zack attempts to use his newfound academic "prestige" to woo a fellow student named Heather after she asks him for help with a study night. The episode concludes with Jessie learning to value her worth beyond a single test score, though the group's manipulation of the recruiter serves as a comedic resolution to her admission anxiety.

Jessie and the gang are invited to her father's wedding, which is being held at the luxury hotel that her father manages. Jessie is ecstatic at first, but becomes shocked and displeased when she discovers that her father is marrying a much younger woman. Meanwhile, Slater goes on a date with a royal princess, Zack and Kelly begin to rethink their relationship, and Screech continues his fruitless pursuit of Lisa, this time using a self-help book on attracting girls.

Jessie attempts to sabotage a dinner date between her father and his fiancee in hopes that it will cause the wedding to be canceled, while Zack tries to talk her into letting the wedding go ahead. Slater adjusts to his new girlfriend being of royal blood, and Zack and Kelly go on a date, but decide to just remain friends.

Zack falls for a new girl named Kristy who wants to become part of the wrestling team but is barred from the team because of her gender. The gang decides to help her out. But when Lisa makes a hint that Slater and Kristy may be carrying on, Jessie walks in on the moment they prepare do to a wrestling move. It's now up to Slater. Meanwhile on a date with Zack, Kristy puts a guy from Valley in a headlock and shows to be "manlier" than Zack, which hurts his pride and he breaks up with her later. Slater realizes that Jessie is jealous when she takes back her statement that girls have a right to wrestle, and they get into an argument. In the end, Slater, Jessie, Zack, and Kristy all make up at their wrestling meet.

Bayside is chosen by a Hollywood teen idol movie star as the location to shoot an anti-drug commercial. The gang is set to star in the commercial; however, when the gang learns that someone has been supposedly smoking pot at Bayside, they soon realize that things are not going to be as easy as they thought. The gang later feels deceived after learning that the star himself uses drugs and pressures Kelly to try pot as well. Zack encourages Kelly not to go through with it and tells the star to leave. However, Mr. Belding saves the day when he brings in an old friend, who happened to be Brandon Tartikoff, the then chairman of NBC, to do the commercial.

Casey Kasem tells the story of how Zack's band, "The Zack Attack," got together and their rise to fame.

It is "Cut Day" at Bayside High, a traditional unofficial holiday where students skip classes to spend the day at the beach or playing games. While the rest of the gang is excited to participate, Zack Morris faces a major problem: Mr. Belding warns him that he already has nine unexcused absences, and a tenth will result in automatic suspension. Zack, never one to back down from a challenge, makes a $100 bet with Slater that he can successfully "cut" every single one of his classes without being caught by Mr. Belding. Throughout the day, Zack uses elaborate schemes, disguises, and the help of a student named Franklin to dodge Belding, who is stalking the hallways specifically to catch Zack in the act. In the B-plot, Jessie Spano decides to skip the fun of Cut Day to focus on her activism. Along with a new, like-minded student council member named Graham, she stages a protest to stop a scheduled delivery of polystyrene foam cups at their school cafeteria.

During the holiday season, the Bayside gang takes on seasonal jobs at the mall, where Zack's mother, Melanie Morris, is directing a community production of"A Christmas Carol".The casting provides comedic irony as Screech is cast as the miserly Ebenezer Scrooge, while the athletic Slater portrays the frail Tiny Tim, and Screech plays the Ghost of Christmas Past. While working at the mall, Zack falls for Laura, a new employee at a clothing store. Zack remains unaware that Laura and her father, Frank, are homeless and living in their car. This ignorance is highlighted when Zack behaves insensitively toward a "bum" in the mall bathroom, only to later discover the man is Frank. The truth is revealed to the gang after Frank collapses from malnutrition and is treated at the hospital where Lisa is volunteering.

Zack confronts Laura at the mall about her secret, but she is defensive and ashamed. Their conversation is cut short when the store owner, Mr. Moody, discovers a sports coat is missing. He immediately accuses Laura of theft due to her "background," fires her, and threatens to call the police. Terrified of being separated or arrested, Laura and Frank flee the mall and disappear. Determined to help, the gang investigates the missing coat. They discover that Mr. Moody simply misplaced it (or that it was accidentally moved by another staff member). Zack and his mother confront Mr. Moody, proving Laura’s innocence. A regretful Moody agrees to rehire her and offers her a raise as an apology. The gang eventually tracks Laura and Frank down to a snowy Christmas tree lot where they are sleeping in their car. Zack delivers the good news about her job and the cleared charges. Seeing the dire state of their living conditions, Zack’s mother, Melanie, makes a grand gesture of holiday spirit by inviting both Laura and Frank to move into the Morris household until Frank can find a steady job and they can secure a home of their own. The episode ends at the mall with the gang successfully performing "A Christmas Carol." Having learned the true meaning of the play through his real-life actions, Zack delivers a sincere performance as the reformed Scrooge. The entire cast, along with Laura and Frank, stands together on stage to sing "Silent Night" as the curtain falls on the holiday special.

As part of Lisa’s prize for winning a radio contest, the gang travels to Knockwood Manor, a secluded mansion, for a murder mystery weekend retreat. The host, Steven Jameson III, explains that the first person to solve the mystery will win a $500 prize and warns the group to "suspect everyone". The weekend features a classic cast of characters, including Bartholomew the butler, Janette the French maid, and Victor the piano player. However, the game takes a sinister turn when a real murder attempt appears to be made on Jameson, who subsequently disappears. Strange occurrences follow as several people begin to vanish one by one, leaving the gang genuinely terrified. Zack Morris eventually finds himself framed for both the "murder" and thievery, and he must play detective to clear his name and uncover the truth

Zack and Slater's friendship is put to the test when they both fall for the same girl, creating a nasty love triangle. When the girl accepts separate dates with Zack and Slater, they crash each other's date with her, which leads to a brutal fistfight between the two in the school hallway. She rejects them both, and they only make up during the Senior Kick-Off Party because Mr. Belding's new toupee falls into the punch bowl during a second, attempted fight between them. In a subplot; Lisa, as a senior, finds herself in an awkward situation when she finds out that her date for the Senior Kick-Off party is only a freshman.

Bayside High observes "Student-Teacher Week," where students swap roles with the faculty to learn about leadership and responsibility. Zack is appointed as Principal, Kelly takes over as a history teacher, and Screech and Lisa are assigned as gym teachers. The experiment quickly turns sour when Zack finds himself caught in a conflict of interest; Slater, struggling with his studies, manipulates Zack into using his principal powers to cancel a difficult history test scheduled for Friday. When Kelly discovers Zack's interference, she is outraged by his lack of professional integrity and insists the test is back on. Zack is forced to choose between being a "cool" friend to Slater or supporting Kelly’s authority as a teacher. Ultimately, Zack realizes that his leadership requires making the right choice rather than the popular one, and he restores the test, leading to a lesson in the challenges of school administration.

After discovering that Screech (Dustin Diamond) has access to his grandmother’s delicious "secret" spaghetti sauce, the gang decides to bottle and sell it to their classmates. The business becomes an overnight success, and with his newfound wealth and status, Screech begins dating Robin(Soleil Moon Frye), a beautiful and wealthy girl. Zack quickly grows suspicious of Robin’s intentions and warns Screech that she is a "gold digger" only interested in his profits. Screech initially refuses to believe him, but his heart is broken when he overhears a private conversation where Robin and a friend mock him and confirm she is indeed using him for his money. Simultaneously, the group is served a cease-and-desist notice after it is discovered that the "secret" family recipe was actually taken directly from a widely available cookbook. Screech admits his grandmother was a poor cook who relied on the book, forcing the gang to shut down their business immediately. Once the sauce profits dry up, Robin officially dumps Screech. A remorseful Screech admits to Zack that his warnings were correct, acknowledging that he allowed his feelings to blind him to Robin's true motives, while the gang rallies around him to offer their support.

As a new school year begins, a biker girl named Tori Scott (Leanna Creel), a tough, leather-jacket-wearing transfer student, arrives at Bayside on her motorcycle and makes an enemy of Zack after she takes his long-held "seniority" parking space on her motorcycle. Their rivalry intensifies when they are paired for an advertising project, which Zack is convinced will be a disaster. He openly labels Tori as "unreliable" after she repeatedly shows up late for their meetings, unaware that she is actually juggling her schoolwork with a job to help her family.Meanwhile, Slater and Screech team up for their own version of the same project. Their partnership is predictably chaotic, as Slater tries to take a professional approach while Screech's bizarre creative ideas—and his general clumsiness—threaten to ruin their work. The episode concludes with Zack and Tori finding common ground after he realizes the reason for her lateness, leading them to successfully complete the project and even begin a brief romance.

Zack helps Lisa put on a fashion show to impress a visiting recruiter from FIT, the fashion school in which Lisa is interested after graduation. However, Zack and Lisa soon start to fall for each other after they share a passionate kiss at Lisa's house, where Zack was trying on an outfit Lisa designed. The next day, before the fashion show (which was held at The Max), Zack and Lisa decided to kiss again to determine if there were any serious feelings between them. At that moment; Screech, with a rose in his hand to give to Lisa for good luck, walks in on them in the middle of their kiss and is devastated. To retaliate, Screech, who served as the announcer for the show, ties in cruel remarks about Zack and Lisa with the regular fashion commentary, making the fashion show a disaster. However, in spite of it all, the fashion school recruiter likes Lisa's designs and decides to consider her for enrollment at FIT. After unsuccessfully challenging Zack to a fight for Lisa, Screech finally accepts the fact that Lisa is not interested in him and promises to get over her.

Zack begins volunteering for a teen crisis hotline and develops a connection with a frequent caller named Melissa. After breaking the hotline's anonymity rules to meet her at The Max, Zack is surprised to discover that Melissa uses a wheelchair. Overcompensating for his initial shock, Zack becomes overly attentive and protective, which ultimately offends Melissa; she explains that she wants to be treated like a peer, not a patient. Zack eventually realizes his mistake, and the two reconcile at a school dance. Meanwhile, Screech volunteers for a "big brother" program but finds himself overwhelmed when he is paired with an incredibly rambunctious and disruptive young boy..

As Bayside High’s annual masquerade ball approaches, Zack and Slater enter into a wager to see who can be the first to kiss the new girl, Tori Scott. However, the plan goes awry when Screech accidentally alerts Tori to the scheme, leading her to plan her own revenge against both boys. Meanwhile, Lisa discovers a series of anonymous love letters in her locker and becomes convinced that her secret admirer is Zack. In reality, the letters are from Screech, whose attempts at romance cause further chaos when Mr. Belding mistakenly intercepts one of the notes and assumes it was written to him by a nearsighted teacher, Mrs. Culpepper. At the ball, Tori tricks Zack and Slater by telling them she will be dressed as Gumby, but she arranges for Screech to wear the costume instead. This leads to a climactic mix-up where Slater, dressed as an astronaut, accidentally kisses Screech. Ultimately, Zack confesses to Tori that he intentionally avoided winning the bet because he has developed genuine feelings for her and could not bear to hurt her. While Tori appreciates his honesty, she reminds both him and Slater that they needed to be taught a lesson for their behavior.

Zack discovers a radio contest offering a grand prize trip to Hawaii, but the final call-in time coincides with a Saturday detention given to him by Mr. Belding. Desperate to be near a phone, Zack recruits the gang to stage a series of distractions to help him "escape" the classroom. However, each attempt—ranging from Lisa faking a fashion emergency to Slater causing a gym distraction—backfires, resulting in the entire group being sentenced to detention alongside him. Stuck together, the friends must find a way to reach a phone line before the contest ends, while Screech accidentally wins a consolation prize that complicates their plan.

A.C. Slater is thrilled to receive a full wrestling scholarship from the University of Iowa. However, his excitement is overshadowed by his father, Major Slater (Gerald Castillo), who has already arranged a high-stakes interview for him to attend West Point. Afraid to disappoint his father, Slater enlists Zack (Mark-Paul Gosselaar) to sabotage the West Point interview by impersonating him and acting as obnoxious as possible in front of a visiting congressman. The plan fails when Major Slater discovers the ruse, leading to a rare serious confrontation where Slater finally asserts his desire to choose his own path at Iowa.

Meanwhile, the B-plot follows Jessie Spano, who joins the cheerleading squad to pad her college applications. Despite the extra effort, she becomes convinced she will be rejected by every school, while Screech easily gets into nearly every university he applied to—including Princeton and USC—thanks to his high GPA.

After getting drunk at a Homecoming party and crashing Doctor Judy Turtle (Lisa's mother)'s car on the way home, Zack and Slater learn the worst thing about DWI: having the book thrown at them by their enraged parents.

Screech and Kevin the Robot invent a "Love Machine" for the science fair that measures a couple's compatibility through physical sensors. When Slater's ex-girlfriend from Berlin, Jennifer (Kanin Howell), arrives at Bayside for a visit, the group decides to test the machine. To Jessie’s devastation, the device indicates that Slater and Jennifer are a perfect match, while Slater and Jessie’s score is incredibly low.Feeling guilty about the awkward tension, Slater asks Zack to take Jennifer out on a date to keep her occupied. However, the plan causes friction when Zack actually starts to enjoy Jennifer's company, and Slater becomes jealous. Ultimately, the gang discovers that the Love Machine was malfunctioning due to Screech's tinkering, and Slater reaffirms his commitment to Jessie.

Zack is appointed as the chairman for the senior class ring committee and tasked with purchasing rings for the entire graduating class. Looking for a bargain, Zack is lured into a "too good to be true" deal by a shady salesman named Gem Diamond, who sells him a bulk order of gold rings at a steep discount. However, the gang soon realizes the rings are fakes when their fingers start turning green.Desperate to fix the situation before the class finds out, Zack and Slater track down the salesman but are unable to get their money back. The situation is resolved when Screech takes matters into his own hands; he confronts the salesman using a hidden recording device to catch him in a lie, eventually forcing the man to provide the authentic rings to avoid being reported to the police.

In the subplot, Tori and Lisa make a bet to see if Tori can endure a date with Screech without being mean to him. Although Tori wins the bet by remaining patient, her kindness causes Screech to mistakenly fall in love with her. Tori is eventually forced to let him down gently, explaining that she only intended to be his friend.

It is Valentine's Day and the gang reminisces about past romances through clips from past episodes.

When a beloved Bayside alumnus passes away and leaves a $10,000 inheritance to the school, a fierce "battle of the sexes" erupts over how the money should be spent. The boys, led by Zack and Slater, argue the funds should go toward new equipment for boys' sports. Meanwhile, the girls, led by Lisa and Tori, demand the money be used for girls' sports. To settle the dispute, Mr. Belding organizes a series of competitions between the "Blue Team" (boys) and the "Red Team" (girls). The rivalry turns into an all-out war after Zack uses unethical tactics to win, including sabotaging the girls' oven during a bake-off contest. After the girls discover the cheating and plan their revenge, both sides eventually realize their behavior has dishonored the alumnus's memory and agree to split the funds fairly.

In order to secure a three-day weekend for a ski trip, Zack and Slater orchestrate a teacher's strike at Bayside High. Zack uses a fraudulent audio recording to trick the lead negotiator, Mr. Tuttle (Jack Angeles), into believing that Principal Belding has a personal vendetta against the faculty. The scheme is so successful that the school is shut down, but the gang soon realizes their victory has a major downside: the strike threatens to cancel the annual Academic Bowl championship against their rivals from Valley High. As the strike continues, Screech—the team's star player—falls ill after being forced to carry heavy ski gear, leaving Zack to take his place in the competition. Realizing they have jeopardized their chances of an academic victory, Zack and Slater must scramble to convince the disenchanted teachers to end their strike and return to the classroom. Meanwhile, Jessie fills in for the absent Kelly at her job at The Max, dealing with the stress of the strike's impact on their education.

When Slater's younger sister, J.B., transfers to Bayside, she and Zack begin a secret romance. Upon discovering the relationship, Slater becomes overprotective and hostile; having witnessed Zack's history of womanizing firsthand, he fears his sister will be treated as just another one of Zack’s many short-lived conquests. Slater goes to extreme lengths to sabotage their dates, leading to a physical confrontation between the two friends. The conflict is only resolved when Zack proves his feelings are genuine, though the relationship ultimately ends when J.B. decides she isn't ready for a committed boyfriend.

The senior prom is coming up and the gang needs to raise money in order for it happen. However, things go wrong when Zack finds out that Kelly has a date to the prom and sabotages it by telling her would-be date that her family is violent to her boyfriends, thereby scaring her date away. Kelly then accepts a date with Zack--that is, until she finds out that he crashed her original date, and then Kelly furiously turns Zack down. Meanwhile, Screech decides to ask other girls to prom rather than Lisa, but Lisa asks him after Screech kept getting rejected, and he accepts. Slater and Jessie get locked in the boiler room and miss most of the prom until Kelly and Zack rescue them.

The gang decides to make a video version of the annual high school yearbook, but Zack has other ideas and decides to use it as a money-making scheme to sell dating videos made from the video clips. However, Zack regrets his plan after Screech mistakenly includes Kelly on the video and she starts receiving calls from other guys.

Screech becomes deeply upset when he realizes that all of his friends, and even his robot Kevin, have forgotten his birthday. To make it up to him, Zack and the gang plan a late surprise party to be held in Mr. Belding’s office. To ensure the hallways are clear for their preparations, Zack orchestrates a scheme to get the current hall monitor fired so that Screech can take over the position. However, the plan backfires when Screech takes his new authority too seriously; he becomes a strict, power-hungry hall monitor and begins issuing detentions to his own friends for minor infractions. This jeopardizes the party as most of the guests end up stuck in detention. Zack eventually uses the school's PA system to summon everyone to the office, where they finally surprise a repentant Screech just before Mr. Belding returns.

The gang puts on a rap version of "Snow White and the Seven Dwarfs". However, when Jessie and Zack find out they have to kiss in the last scene, they start to wonder if they are more than friends, and question their feelings for each other (falling out with Kelly and Slater in the process). In the end, Jessie remains with Slater, while Zack rekindles his love for Kelly.

Tori, Zack and Mrs. Belding get stuck in an elevator during an earthquake, but things get worse when Mr. Belding's wife goes into labor.

Zack takes a day off of school and reminisces, through clips from the Malibu Sands and Palm Springs episodes, about the time he and the gang spent in Malibu Sands and Palm Springs. While Kelly and Jessie appear in clips from those summer-based episodes, they do not appear in any new footage alongside Zack, Slater, Lisa and Screech, since this episode was put together to pad out the schedule after Tiffani-Amber Thiessen and Elizabeth Berkley left the series.

In an effort to prepare the students for the adult world, Miss Bliss (in her final appearance of the series) or Mr. Belding implements a "buddy system" where students are paired up to learn responsibility. Slater is called away for a wrestling tournament and leaves his beloved pet chameleon, Artie, in the care of Screech. However, things soon go awry when Screech accidentally leaves the cage open and Artie goes missing.Panicked, Zack and Screech attempt to find a replacement lizard that looks exactly like Artie before Slater returns. The situation becomes a chaotic game of hide-and-seek throughout Bayside High as they try to keep the truth from Slater while avoiding the suspicious gaze of Mr. Belding. Ultimately, the real Artie is found, and Screech learns a lesson about the weight of responsibility.

With graduation approaching, Principal Belding announces a competition for the students to write a new school song for Bayside High. Realizing his high school legacy consists mostly of detentions and scams, Zack becomes obsessed with winning so he can be remembered for a positive contribution. To ensure his victory, Zack begins a series of sabotage campaigns against his friends' entries: he ruins the tape for the Glee Club, destroys Slater’s "Heavy Metal" version of the song, and tampers with Screech’s unusual arrangement. After his friends discover his underhanded tactics and confront him, Zack is struck with regret over prioritizing his ego over their friendships. He ultimately decides to drop his own entry and works with the entire gang to create a collaborative song that celebrates their time together. The episode ends with the group performing the unified song at a school assembly, which is chosen as the official anthem for the class.

Ten years into the future (in 2003), the latest class finds a time capsule on video, so Belding plays it for them. They discover that it's footage of Zack and the old gang with highlights of the ups and downs they went through (through clips from past episodes).

As the seniors prepare for commencement, Zack is stunned to learn from Mr. Belding that he is one credit short of graduating. To earn the necessary credit in time, he is forced to enroll in a ballet class, eventually performing in a recital in a tutu to secure his diploma.Meanwhile, Jessie is devastated to discover she is not the class valedictorian, losing the honor to Screech by a fraction of a grade point. Initially bitter, Jessie plans to protest the decision until Lisa helps her realize that Screech has spent years supporting his friends' success while ignoring his own. Touched by his selflessness, Jessie gracefully accepts the results and celebrates with her friend. The episode concludes with the iconic graduation ceremony where the gang says an emotional goodbye to Bayside High and Mr. Belding.