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Howard comes up with the idea for a trash compactor, and Fonzie becomes his partner to help him build it. They become very excited about the success they could achieve.

Fonzie gets a dog and she escapes when Ralph and Potsie accidentally leave the gate open. Ralph tells Fonzie that the dog, Spunky, was stolen.

Ralph takes bets on football games at 10:1 odds. The Green Bay Packers pull out an unexpected win, and Ralph owes a lot of people a lot of money.

After crashing in a stock-car race, Fonzie begins to worry about what will happen when his number comes up. Al suggests Fonzie seek the guidance of his brother.

A Hollywood talent scout, needing a mechanic for his limousine, sees Fonzie at Arnold's and thinks he could be the next James Dean. The gang go to Hollywood with Fonzie for his screen test.

Fonzie takes his screen test with Richie as his reading partner. The director loves Fonzie, but the studio is more impressed with Richie and offers him a contract.

Fonzie faces jumping a caged shark on water skis, and Richie decides whether or not he wants to sign the Paramount Pictures contract he was offered.

Facing a dating slump, Fonzie suggests that Richie go to the library to meet girls. While there, Richie meets Lori Beth Allen, who invites him to her dorm room.

After Chachi is caught by a truant officer, Fonzie and Richie arrange for Joanie to tutor him. He gets caught cheating on a test and, as a result, gets suspended from school.

Fonzie has to have his tonsils removed and will miss a big Halloween party.

Richie, Potsie, and Ralph get an apartment of their own.

Pinky's sister, Leather, comes to Milwaukee looking for a gig. Al gives her and her group a job at Arnold's after a successful audition, but Officer Kirk threatens to shut the place down.

After Howard refuses to let Joanie go on tour with Leather, she follows through with her threat to run away from home.

Fonzie is invited to a socialite dinner party, but the people who invite him do so thinking Fonzie will make a fool of himself.

Richie, Potsie, and Ralph want to join the best fraternity on campus, but they have to survive 'Hell Week' first.

Ralph is caught with the girl of the football team's star fullback, Rebel E Lee. Instead of a fight, Fonzie arranges a boxing match between Rebel and Ralph to settle their dispute.

After getting a D on a paper for his investigative reporting class, Richie decides to do a story about the corrupt sanitation department.

Howard's father comes for a visit after being forcibly retired as a captain of detectives due to his age. Not wanting to sit around, he gets a job at Fonzie's garage.

Potsie decides he wants to marry Jennifer Jerome, his girlfriend, after one date. Howard instead suggests that Potsie get pinned instead, but Potsie backs out after asking her.

Joanie is set to go on her first car date, so Fonzie and Richie show her how to counter any advances her date may make toward her. However, Joanie would like a chance for her first kiss.

When Marion's friend is dumped by her husband for a younger woman, Marion begins to think that Howard may do the same to her.

Lori Beth reports that Richie isn't moving after they crash his new motorcycle.

Fonzie's dog, Spunky, appears depressed and distant. After a visit to the veterinarian, it is determined that Spunky's problem is mental.

Joanie daydreams about the gang singing romantic Valentine's Day songs.

Richie tells Chachi the story of how he met Fonzie in order to convince him that joining a gang is a mistake.

An alien, Mork from Ork, comes to Earth looking for someone average or humdrum to study, and ends up picking Richie.

Lori Beth has to write a term paper on the typical, middle-class family, so she interviews each Cunningham family member as well as their friends.

Fonzie's girlfriend is a moderately successful ballet teacher, but Fonzie has trouble accepting that she may be happier as a professional performer in New York.

Al is to receive a man-of-the-year award from the Sons of Italy, but he doesn't have a date. Fonzie sets him up with a meter maid, and she agrees to go with him to the banquet.

Richie and Lori Beth have a fight and break up before going on a weekend trip where the band is backing up Leather and the Suedes. Meanwhile, Howard and Marion argue about women's rights.

Fonzie and Howard are picked for jury duty. The case appears cut and dry, but Fonzie isn't so sure. Meanwhile, Richie, Potsie and Ralph practice for a fraternity festival.

A Hollywood talent scout, needing a mechanic for his limousine, sees Fonzie at Arnold's and thinks he could be the next James Dean. The gang go to Hollywood with Fonzie for his screen test.

Fonzie takes his screen test with Richie as his reading partner. The director loves Fonzie, but the studio is more impressed with Richie and offers him a contract.

Fonzie faces jumping a caged shark on water skis, and Richie decides whether or not he wants to sign the Paramount Pictures contract he was offered.

Facing a dating slump, Fonzie suggests that Richie go to the library to meet girls. While there, Richie meets Lori Beth Allen, who invites him to her dorm room.

After Chachi is caught by a truant officer, Fonzie and Richie arrange for Joanie to tutor him. He gets caught cheating on a test and, as a result, gets suspended from school.

Fonzie has to have his tonsils removed and will miss a big Halloween party.

Richie, Potsie, and Ralph get an apartment of their own.

Pinky's sister, Leather, comes to Milwaukee looking for a gig. Al gives her and her group a job at Arnold's after a successful audition, but Officer Kirk threatens to shut the place down.

After Howard refuses to let Joanie go on tour with Leather, she follows through with her threat to run away from home.

Fonzie is invited to a socialite dinner party, but the people who invite him do so thinking Fonzie will make a fool of himself.

Richie, Potsie, and Ralph want to join the best fraternity on campus, but they have to survive 'Hell Week' first.

After getting a D on a paper for his investigative reporting class, Richie decides to do a story about the corrupt sanitation department.

Howard's father comes for a visit after being forcibly retired as a captain of detectives due to his age. Not wanting to sit around, he gets a job at Fonzie's garage.

Potsie decides he wants to marry Jennifer Jerome, his girlfriend, after one date. Howard instead suggests that Potsie get pinned instead, but Potsie backs out after asking her.

Joanie is set to go on her first car date, so Fonzie and Richie show her how to counter any advances her date may make toward her. However, Joanie would like a chance for her first kiss.

When Marion's friend is dumped by her husband for a younger woman, Marion begins to think that Howard may do the same to her.

Lori Beth reports that Richie isn't moving after they crash his new motorcycle.

Fonzie's dog, Spunky, appears depressed and distant. After a visit to the veterinarian, it is determined that Spunky's problem is mental.

Joanie daydreams about the gang singing romantic Valentine's Day songs.

Richie tells Chachi the story of how he met Fonzie in order to convince him that joining a gang is a mistake.

An alien, Mork from Ork, comes to Earth looking for someone average or humdrum to study, and ends up picking Richie.

Lori Beth has to write a term paper on the typical, middle-class family, so she interviews each Cunningham family member as well as their friends.

Fonzie's girlfriend is a moderately successful ballet teacher, but Fonzie has trouble accepting that she may be happier as a professional performer in New York.

Al is to receive a man-of-the-year award from the Sons of Italy, but he doesn't have a date. Fonzie sets him up with a meter maid, and she agrees to go with him to the banquet.

Richie and Lori Beth have a fight and break up before going on a weekend trip where the band is backing up Leather and the Suedes. Meanwhile, Howard and Marion argue about women's rights.

Fonzie and Howard are picked for jury duty. The case appears cut and dry, but Fonzie isn't so sure. Meanwhile, Richie, Potsie and Ralph practice for a fraternity festival.

The entire gang goes to Colorado to help Marion's Uncle Ben at his dude ranch. They have to come up with enough money in five days to pay off Ben's neighbour who holds a note on the ranch.

The gang stages a rodeo in an attempt to raise money to pay off the note HR Buchanan holds on Marion's Uncle Ben's ranch.

Richie is able to stop the out-of-control horses that are pulling a wagon Joanie is in. With the deadline looming, the gang is still short, so Fonzie volunteers to ride a killer bull for a $1000 prize.

Al accidentally hits Fonzie in the head with a serving tray, and he becomes blind as a result.

Richie makes up a story to tell Lori Beth when he's actually escorting a baton twirler to the fraternity dance.

Fonzie and his girlfriend's son are getting along together as if they were father and son, but his girlfriend reveals that she and her estranged husband are getting back together.

Joanie thinks she's found true love in Jefferson High's star quarterback. However, she sees him sweet-talking another girl, breaks up with him, and is faced with not having a date for her sweet 16 party.

Richie is writing a story about fears and phobias, and he finds out that Ralph is afraid of nearly everything.

Al fears that an elderly lady has placed a curse on him.

Al thinks about taking on an investment partner to create an Arnold's franchise, but when Al suggests consulting an accountant and lawyer beforehand, the man he's dealing with calls in his goons.

Fonzie comes to think that he is allergic to girls.

Upset that the family is watching a football game instead of helping her prepare the Thanksgiving dinner, Marion reminds them of the meaning of the holiday with the story of the first Thanksgiving.

Richie's reputation goes from respectable to racy after he's identified in a police line-up as the notorious Kissing Bandit.

Howard and Al are co-chairmen of a Leopard Lodge fundraiser, but the magician/escape artist they hire injures himself while attempting the milk-can escape.

Richie, who is running for class president, gets his picture taken at a massage parlour by his opponent. Richie thinks his campaign will be ruined if the picture gets out.

Fonzie receives a Christmas gift from his father but is reluctant to accept and open it. Meanwhile, Joanie is upset at Howard for getting an artificial tree.

Joanie starts smoking to fit in with a club she's recently joined. Howard initially forbids her to smoke but, eventually, allows her to make her own decision.

Richie temporarily takes over a local newspaper's advice column but only tells Fonzie about it. Potsie and Ralph, in an attempt to solve their continuous bickering, write in to Richie's column.

Leather and the band audition for a television music show and are turned down. Leather's song, however, is stolen and recorded by another band.

It's Howard and Marion's 23rd anniversary. Richie, Fonzie and Joanie have arranged for them to take a second honeymoon, but Marion wants everything to be exactly the same as it was on their first honeymoon.

Ralph asks Leather to the annual military ball. Fonzie teaches Ralph to act like a serious gentleman, and Marion teaches Leather to dress and act like an elegant lady.

Fonzie discovers thousands of dollars in counterfeit money hidden in a casket inside of a hearse he is working on. When he doesn't return after returning the hearse, the guys fear the worst.

Fonzie survives an explosion at the garage triggered by the counterfeiters. The counterfeiters don't know that Fonzie has survived, so a phony funeral is staged at their funeral parlour to entrap them.

Mork returns to 1950s Milwaukee to learn about relationships in this retrospective episode.

A fencing champion from France visits UWM for an exhibition. After he insults Joanie and America, Richie challenges the champion to a duel.

Needing extra money, Chachi begins selling Incredo-Wax, a miracle product that will shine anything. Unfortunately, it has disastrous side effects and ruins everything it touches.

Potsie threatens to quit school and Joanie and Howard are at odds over her less than stellar report card.

The entire gang goes to Colorado to help Marion's Uncle Ben at his dude ranch. They have to come up with enough money in five days to pay off Ben's neighbour who holds a note on the ranch.

The gang stages a rodeo in an attempt to raise money to pay off the note HR Buchanan holds on Marion's Uncle Ben's ranch.

Richie is able to stop the out-of-control horses that are pulling a wagon Joanie is in. With the deadline looming, the gang is still short, so Fonzie volunteers to ride a killer bull for a $1000 prize.

Al accidentally hits Fonzie in the head with a serving tray, and he becomes blind as a result.

Richie makes up a story to tell Lori Beth when he's actually escorting a baton twirler to the fraternity dance.

Fonzie and his girlfriend's son are getting along together as if they were father and son, but his girlfriend reveals that she and her estranged husband are getting back together.

Joanie thinks she's found true love in Jefferson High's star quarterback. However, she sees him sweet-talking another girl, breaks up with him, and is faced with not having a date for her sweet 16 party.

Richie is writing a story about fears and phobias, and he finds out that Ralph is afraid of nearly everything.

Al fears that an elderly lady has placed a curse on him.

Al thinks about taking on an investment partner to create an Arnold's franchise, but when Al suggests consulting an accountant and lawyer beforehand, the man he's dealing with calls in his goons.

Upset that the family is watching a football game instead of helping her prepare the Thanksgiving dinner, Marion reminds them of the meaning of the holiday with the story of the first Thanksgiving.

Richie's reputation goes from respectable to racy after he's identified in a police line-up as the notorious Kissing Bandit.

Howard and Al are co-chairmen of a Leopard Lodge fundraiser, but the magician/escape artist they hire injures himself while attempting the milk-can escape.

Richie, who is running for class president, gets his picture taken at a massage parlour by his opponent. Richie thinks his campaign will be ruined if the picture gets out.

Fonzie receives a Christmas gift from his father but is reluctant to accept and open it. Meanwhile, Joanie is upset at Howard for getting an artificial tree.

Joanie starts smoking to fit in with a club she's recently joined. Howard initially forbids her to smoke but, eventually, allows her to make her own decision.

Richie temporarily takes over a local newspaper's advice column but only tells Fonzie about it. Potsie and Ralph, in an attempt to solve their continuous bickering, write in to Richie's column.

Leather and the band audition for a television music show and are turned down. Leather's song, however, is stolen and recorded by another band.

It's Howard and Marion's 23rd anniversary. Richie, Fonzie and Joanie have arranged for them to take a second honeymoon, but Marion wants everything to be exactly the same as it was on their first honeymoon.

Ralph asks Leather to the annual military ball. Fonzie teaches Ralph to act like a serious gentleman, and Marion teaches Leather to dress and act like an elegant lady.

Fonzie discovers thousands of dollars in counterfeit money hidden in a casket inside of a hearse he is working on. When he doesn't return after returning the hearse, the guys fear the worst.

Fonzie survives an explosion at the garage triggered by the counterfeiters. The counterfeiters don't know that Fonzie has survived, so a phony funeral is staged at their funeral parlour to entrap them.

Mork returns to 1950s Milwaukee to learn about relationships in this retrospective episode.

A fencing champion from France visits UWM for an exhibition. After he insults Joanie and America, Richie challenges the champion to a duel.

Needing extra money, Chachi begins selling Incredo-Wax, a miracle product that will shine anything. Unfortunately, it has disastrous side effects and ruins everything it touches.

Potsie threatens to quit school and Joanie and Howard are at odds over her less than stellar report card.

The Cunninghams and Fonzie go on vacation to Lake Pinewood, where Richie and Fonzie devise a plan to meet up with two lonely ladies.

Wanting to be treated more like an adult, Chachi sells his soul to the devil. In order to get him out of it, Fonzie has to go 24 hours without receiving a kiss from a girl.

The merchant seamen are in town, and with them is Rico, a sworn enemy of Fonzie. Fonzie is primed to fight, but Father Delvecchio makes him promise not to.

After Howard loses his temper at Marion for wrecking the car, she opts for jail-time instead of a traffic fine to prove to her husband that she can be responsible for her actions.

Wanting to have some money of his own, Richie gets a job loading papers for The Milwaukee Journal. But a man named Frank, who works in the same department, doesn't like Richie right from the start.

Embarrassed when girlfriend Lori Beth makes him wear a silly costume for the Homecoming parade, unhappy Richie storms off to a bar to be alone.

Marion is a star in a community theatre play, but her director and co-star begins to make unwelcome advances towards her.

Howard Cunningham's chance to become the next Grand Poobah hangs in the balance after the burlesque troop he hires for a big event at his Milwaukee Leopard Lodge gets snowbound in Buffalo.

Fed up with her parents' restrictions, 17-year-old Joanie decides to assert her independence and secretly auditions for a modelling job with a photographer who specialises in nudes.

Newly crowned Delta Gamma King Richie Cunningham loses his inhibitions and offends his friends after college bully Bullfrog spikes his drink just before his acceptance speech.

Richie, Potsie, and Ralph are invited to a party hosted by the She Devils gang, where the Devil who brings in the biggest nerd wins a $100 prize.

Fonzie hires a wheelchair-bound man for the new mechanic job, but he drives Fonzie crazy and is rude to everyone he comes into contact with.

When Milwaukee's East Boulevard Business Association, led by Howard, wants to build an expressway off-ramp through Inspiration Point, everyone does their best to save the make-out spot.

After initially being reluctant to go through with it, Howard agrees to have a second wedding where he and Marion will renew their vows.

The guys and their girls go on a camping trip for their spring vacation. Under Richie's leadership, everything seems to go wrong and nobody has a good time.

Joanie is unsure about whether or not she wants to go with her boyfriend to the Alamo, a special section of Inspiration Point.

Chachi accidentally sets Arnold's on fire, and Fonzie, Potsie, and Ralph are trapped inside.

Fonzie agrees to help Al fund the rebuilding of Arnold's. Their business partnership is threatened when the two can't resolve disagreements on crucial aspects of the project.

After hearing from a former employee about the wonders of television advertising, Howard thinks it will help sales at his hardware store.

Fonzie meets a deaf woman at the electric company office where he is attempting to straighten out a billing error for Howard. He gives Richie the indication that this girl may be the one.

Joanie thinks Chachi is losing interest in her, and Chachi thinks Joanie isn't taking him seriously. On the advice of Lori Beth, Joanie invites Chachi over for dinner.

Richie reluctantly goes to a Leopard Lodge convention with Howard in Chicago, despite really wanting to go to a Bears game with Potsie and Ralph.

Potsie secures an audition as a singer for a local club. The potential success goes to his head, and he treats those around him as inferiors.

Howard's Uncle Joe, after reading Richie's report on the 1920s, tells him a story about what really happened during Prohibition.

Ralph's parents are getting a divorce, and Ralph becomes depressed. Meanwhile, Marion practices for her upcoming role as the witch in a Hansel and Gretel play.

The Cunninghams and Fonzie go on vacation to Lake Pinewood, where Richie and Fonzie devise a plan to meet up with two lonely ladies.

Wanting to be treated more like an adult, Chachi sells his soul to the devil. In order to get him out of it, Fonzie has to go 24 hours without receiving a kiss from a girl.

The merchant seamen are in town, and with them is Rico, a sworn enemy of Fonzie. Fonzie is primed to fight, but Father Delvecchio makes him promise not to.

After Howard loses his temper at Marion for wrecking the car, she opts for jail-time instead of a traffic fine to prove to her husband that she can be responsible for her actions.

Wanting to have some money of his own, Richie gets a job loading papers for The Milwaukee Journal. But a man named Frank, who works in the same department, doesn't like Richie right from the start.

Embarrassed when girlfriend Lori Beth makes him wear a silly costume for the Homecoming parade, unhappy Richie storms off to a bar to be alone.

Marion is a star in a community theatre play, but her director and co-star begins to make unwelcome advances towards her.

Howard Cunningham's chance to become the next Grand Poobah hangs in the balance after the burlesque troop he hires for a big event at his Milwaukee Leopard Lodge gets snowbound in Buffalo.

Fed up with her parents' restrictions, 17-year-old Joanie decides to assert her independence and secretly auditions for a modelling job with a photographer who specialises in nudes.

Newly crowned Delta Gamma King Richie Cunningham loses his inhibitions and offends his friends after college bully Bullfrog spikes his drink just before his acceptance speech.

The Cunninghams and Fonzie go on vacation to Lake Pinewood, where Richie and Fonzie devise a plan to meet up with two lonely ladies.

Richie, Potsie, and Ralph are invited to a party hosted by the She Devils gang, where the Devil who brings in the biggest nerd wins a $100 prize.

Fonzie hires a wheelchair-bound man for the new mechanic job, but he drives Fonzie crazy and is rude to everyone he comes into contact with.

When Milwaukee's East Boulevard Business Association, led by Howard, wants to build an expressway off-ramp through Inspiration Point, everyone does their best to save the make-out spot.

After initially being reluctant to go through with it, Howard agrees to have a second wedding where he and Marion will renew their vows.

The guys and their girls go on a camping trip for their spring vacation. Under Richie's leadership, everything seems to go wrong and nobody has a good time.

Joanie is unsure about whether or not she wants to go with her boyfriend to the Alamo, a special section of Inspiration Point.

Chachi accidentally sets Arnold's on fire, and Fonzie, Potsie, and Ralph are trapped inside.

Fonzie agrees to help Al fund the rebuilding of Arnold's. Their business partnership is threatened when the two can't resolve disagreements on crucial aspects of the project.

After hearing from a former employee about the wonders of television advertising, Howard thinks it will help sales at his hardware store.

Fonzie meets a deaf woman at the electric company office where he is attempting to straighten out a billing error for Howard. He gives Richie the indication that this girl may be the one.

Joanie thinks Chachi is losing interest in her, and Chachi thinks Joanie isn't taking him seriously. On the advice of Lori Beth, Joanie invites Chachi over for dinner.

Richie reluctantly goes to a Leopard Lodge convention with Howard in Chicago, despite really wanting to go to a Bears game with Potsie and Ralph.

Potsie secures an audition as a singer for a local club. The potential success goes to his head, and he treats those around him as inferiors.

Howard's Uncle Joe, after reading Richie's report on the 1920s, tells him a story about what really happened during Prohibition.

Ralph's parents are getting a divorce, and Ralph becomes depressed. Meanwhile, Marion practices for her upcoming role as the witch in a Hansel and Gretel play.

Feeling Joanie and Chachi date too much, Howard offers to install a phone in her room if she agrees not to see Chachi for two weeks. She and Chachi try to find a way to get around this.

Fonzie is given the job as teacher of auto mechanics at Jefferson High School. He gets frustrated when his students don't pick everything up as quickly as he did when he was a kid.

Lori Beth receives a letter from Richie in which he proposes marriage. She has to go to Greenland for the wedding, but doesn't have the money to make the trip.

Roger Phillips, Marion's nephew, comes to Milwaukee to become an English teacher and the basketball coach at Jefferson High School. He gets off on the wrong foot with Fonzie.

Despite Howard's objection, Joanie decides to buy a car because she and Chachi are tired of having to double-date, and Chachi cannot afford to buy his own.

On Christmas Eve, a terrible blizzard traps Howard and Joanie at the hardware store and Fonzie, Potsie, Chachi, Jenny, and Roger at Arnold's.

Fonzie wants to win the Teacher of the Year award to spite a fellow teacher.

Al announces that he's given up his search for Rosa Coletti, a woman with whom he was involved with 20 years ago. However, he receives a letter from his mother saying that she's found Rosa.

Fonzie's motorcycle has seen better days and needs replacing. Joanie suggests to Chachi that they all pool their money with Fonzie's to surprise him with a new bike for his birthday.

Fonzie comes down with a terrible toothache but refuses to see a dentist. Meanwhile, Howard is upset about Joanie's choice of attire for a wedding she's attending.

After a day of everyone asking favours of him, Fonzie has a nightmare about a mad scientist draining his cool.

Chachi becomes jealous when he witnesses a passionate love scene between Joanie and an actor during rehearsals for a school play.

After Jenny's date dumps her before a big masquerade ball, Fonzie agrees to take her. They dress as a bride and groom and, as part of a talent portion of the party, have a make-believe wedding.

Because she's never been to his house or met his mother, Joanie thinks that Chachi is ashamed of her. Fonzie invites the Cunningham's over to the Arcola's for dinner on Chachi's behalf.

Fonzie is shot, presumably by Potsie, during a weekend trip to Potsie's uncle's cabin. Fonzie, Chachi, and Roger each describe their versions of what happened.

Potsie falls behind on his rent and is forced to move back in with his parents. However, after learning that Lori Beth's roommate likes men who live alone, Potsie has to stay in his apartment.

Chachi discovers a great basketball player who recently transferred to Jefferson High.

Desperate to get Chachi on the school's basketball team, a scout for Eastern Florida University offers him a scholarship and several other superfluous perks, which seem too good to be true.

Richie and Lori Beth want to get married, but Lori Beth cannot go to Richie's base until they're already married. Roger suggests that they have a ceremony in which a proxy stands in for Richie.

Marion hurts her back before a bowling game, but Howard finds a new partner in the beautiful Fern Flagg. He had told Marion that she was an older woman, but when they meet, Marion is upset at his lying.

Fonzie takes his auto shop class to an out-of-town junkyard and meets a waitress at a diner whom he thinks is his mother.

Chachi struggles with an essay on the causes, hardships, and influences of immigration, until Fonzie tells him several stories in a series of musical vignettes.

Feeling Joanie and Chachi date too much, Howard offers to install a phone in her room if she agrees not to see Chachi for two weeks. She and Chachi try to find a way to get around this.

Fonzie is given the job as teacher of auto mechanics at Jefferson High School. He gets frustrated when his students don't pick everything up as quickly as he did when he was a kid.

Lori Beth receives a letter from Richie in which he proposes marriage. She has to go to Greenland for the wedding, but doesn't have the money to make the trip.

Roger Phillips, Marion's nephew, comes to Milwaukee to become an English teacher and the basketball coach at Jefferson High School. He gets off on the wrong foot with Fonzie.

Despite Howard's objection, Joanie decides to buy a car because she and Chachi are tired of having to double-date, and Chachi cannot afford to buy his own.

On Christmas Eve, a terrible blizzard traps Howard and Joanie at the hardware store and Fonzie, Potsie, Chachi, Jenny, and Roger at Arnold's.

Fonzie wants to win the Teacher of the Year award to spite a fellow teacher.

Al announces that he's given up his search for Rosa Coletti, a woman with whom he was involved with 20 years ago. However, he receives a letter from his mother saying that she's found Rosa.

Fonzie's motorcycle has seen better days and needs replacing. Joanie suggests to Chachi that they all pool their money with Fonzie's to surprise him with a new bike for his birthday.

Fonzie comes down with a terrible toothache but refuses to see a dentist. Meanwhile, Howard is upset about Joanie's choice of attire for a wedding she's attending.

Feeling Joanie and Chachi date too much, Howard offers to install a phone in her room if she agrees not to see Chachi for two weeks. She and Chachi try to find a way to get around this.

Fonzie is given the job as teacher of auto mechanics at Jefferson High School. He gets frustrated when his students don't pick everything up as quickly as he did when he was a kid.

Lori Beth receives a letter from Richie in which he proposes marriage. She has to go to Greenland for the wedding, but doesn't have the money to make the trip.

Roger Phillips, Marion's nephew, comes to Milwaukee to become an English teacher and the basketball coach at Jefferson High School. He gets off on the wrong foot with Fonzie.

Despite Howard's objection, Joanie decides to buy a car because she and Chachi are tired of having to double-date, and Chachi cannot afford to buy his own.

After a day of everyone asking favours of him, Fonzie has a nightmare about a mad scientist draining his cool.

Chachi becomes jealous when he witnesses a passionate love scene between Joanie and an actor during rehearsals for a school play.

After Jenny's date dumps her before a big masquerade ball, Fonzie agrees to take her. They dress as a bride and groom and, as part of a talent portion of the party, have a make-believe wedding.

Because she's never been to his house or met his mother, Joanie thinks that Chachi is ashamed of her. Fonzie invites the Cunningham's over to the Arcola's for dinner on Chachi's behalf.

Fonzie is shot, presumably by Potsie, during a weekend trip to Potsie's uncle's cabin. Fonzie, Chachi, and Roger each describe their versions of what happened.

Potsie falls behind on his rent and is forced to move back in with his parents. However, after learning that Lori Beth's roommate likes men who live alone, Potsie has to stay in his apartment.

Chachi discovers a great basketball player who recently transferred to Jefferson High.

Desperate to get Chachi on the school's basketball team, a scout for Eastern Florida University offers him a scholarship and several other superfluous perks, which seem too good to be true.

Richie and Lori Beth want to get married, but Lori Beth cannot go to Richie's base until they're already married. Roger suggests that they have a ceremony in which a proxy stands in for Richie.

Marion hurts her back before a bowling game, but Howard finds a new partner in the beautiful Fern Flagg. He had told Marion that she was an older woman, but when they meet, Marion is upset at his lying.

Fonzie takes his auto shop class to an out-of-town junkyard and meets a waitress at a diner whom he thinks is his mother.

Chachi struggles with an essay on the causes, hardships, and influences of immigration, until Fonzie tells him several stories in a series of musical vignettes.

Joanie prepares some home movies to send to Richie. She mentions that she and Chachi have had their problems over the summer. In the movies, Lori Beth announces that she's going to have a baby.

Fonzie's Falcons and their rival gang, the War Mongers, attempt to settle their old scores with a game of softball. The outcome is disputed, so they end up rumbling.

Al tells Chachi about his dull, mundane life, so Chachi suggests that he ask his mother out. However, they discover his mother is already seeing a mystery man.

Chachi tells Joanie that he wants to date other girls and soon realises that he's made a big mistake.

Fonzie happily agrees to be Lori Beth's natural childbirth coach in husband Richie's absence, until he finds out that he'll also have to go into the delivery room with her.

Fonzie and Roger are dating the same girl but don't know it. Meanwhile, Joanie is upset that she and Chachi don't go out as much as they used to.

Fonzie substitutes for Roger in his hygiene class, and, as a prank, the students hide the lesson plan and tell Fonzie they're in a sex education class.

In order for Jenny to join the Rondells club, she has to steal a statue from Pfister Park and bring it to their clubhouse. Joanie is there to help, and they are both caught by Officer Kirk.

Fonzie is rejected several times by a new teacher at Jefferson High. After he kisses her in a final attempt to win her over, she screams and runs out of the house.

Joanie takes care of Richie Jr for the weekend, while Lori Beth visits Richie in Greenland. Howard and Marion go to New York on business, and Fonzie is away at a teachers' convention.

Dateless for an upcoming concert, Jenny is set up with Eugene Belvin by Joanie and Chachi. They, along with Fonzie, try to make Eugene appeal to Jenny by making him seem manly.

Joanie has to decide where she wants to go to college, UCLA or the local UWM. She wants to go to UCLA, but Howard very much wants her to go to UWM.

After seeing reports on television, Al feels compelled to visit the South to take part in an upcoming freedom march. Fonzie, concerned for his friend's wellbeing, decides to go with him.

Fonzie and Chachi's grandmother becomes very upset at them for suggesting that she move into a retirement home after they observe some signs of senility.

Al is chosen to head the Leopard Lodge's annual Poobah Doo Dah when he says he can get his distant cousin, Frankie Avalon, to perform.

When Fonzie discovers that famous composer Tchaikovsky was very much like himself, he decides to get the entire Jefferson High gang to like classical music.

The gang tries to get the Lone Ranger, Fonzie's idol, to appear at his birthday party. Meanwhile, Fonzie thinks about becoming a one-woman man.

Fonzie shows Roger a better way to attract women, Joanie and Chachi attempt songwriting, Potsie wants to join the Leopard Lodge, and Marion is up for the lead in a local musical production.

Roger entrusts his brother, Flip, to pick up Marion after he attends a concert, but he skips the concert to hang out with some hoodlums and leaves Marion to walk home in the cold.

After a day of fishing with Howard, Chachi gets to thinking about his future when he realises that being a success in the music business is a long shot.

Jealous of Joanie's friendship with a new girl in school, Mikki, Jenny spreads a false rumour that Mikki is pregnant. As the rumour circulates, Fonzie is added to it as being the father.

After a month of dating, Al wants to ask Chachi's mum to marry him. Being an old fashioned guy, Al asks Chachi's permission. He grants it, but doesn't think she'll want to marry Al.

Joanie prepares some home movies to send to Richie. She mentions that she and Chachi have had their problems over the summer. In the movies, Lori Beth announces that she's going to have a baby.

Fonzie's Falcons and their rival gang, the War Mongers, attempt to settle their old scores with a game of softball. The outcome is disputed, so they end up rumbling.

Al tells Chachi about his dull, mundane life, so Chachi suggests that he ask his mother out. However, they discover his mother is already seeing a mystery man.

Chachi tells Joanie that he wants to date other girls and soon realises that he's made a big mistake.

Fonzie happily agrees to be Lori Beth's natural childbirth coach in husband Richie's absence, until he finds out that he'll also have to go into the delivery room with her.

Fonzie and Roger are dating the same girl but don't know it. Meanwhile, Joanie is upset that she and Chachi don't go out as much as they used to.

Fonzie substitutes for Roger in his hygiene class, and, as a prank, the students hide the lesson plan and tell Fonzie they're in a sex education class.

In order for Jenny to join the Rondells club, she has to steal a statue from Pfister Park and bring it to their clubhouse. Joanie is there to help, and they are both caught by Officer Kirk.

Fonzie is rejected several times by a new teacher at Jefferson High. After he kisses her in a final attempt to win her over, she screams and runs out of the house.