Mindy teaches Mork about practical jokes, but Mork doesn't quite get the hang of pranks. After a disastrous prank, Mindy moves out to live with Glenda Faye for awhile. Glenda convinces Mindy to take Mork back.

Robin Williams is in town and Mindy can't get an interview. Mork doesn't think he looks anything like Robin Williams, but he gets chased by a mob of fans. Mork gets Mindy and himself into Robin Williams' dressing room, leading to a face-to-face interview with him.

Mork's boss, Orson, assigns Mork to study the planet Earth and, shortly after landing in the woods near Boulder, Colorado, he meets Mindy McConnell. Back at Mindy's apartment, she discovers that Mork is an alien, and offers to help him study Earth. In a flashback sequence, Mork tells Mindy about a previous visit to Earth when Fonzie arranged a date for him with Laverne.

Mork meets an Immigrant from Russia and Mindy teaches Mork about democracy. An illegal alien has a new meaning for Mork.

A new customer at the music store turns out to be Mindy's old rival, Susan, who promptly sets her sights on Mork, as revenge for Mindy stealing her boyfriend back in high school.

Mork kidnaps a chimp from the zoo, saying he was being treated badly. Exidor investigates at the zoo and learns that the chimp's mother was rushed to the hospital. Mork sneaks in to the zoo and reunites the chimp and it's mother.

Mork accompanies Mindy to her high school reunion and gets upset when Mindy associates with an old boyfirend. Mork then attempts to go back in time to the prom and do away with the boyfriend and he succeeds. When Mork comes back to reality Mindy then assures him that he is the only one she loves.

Mork meets a bully who wants to dance with Mindy but Mork is opposed to violence. Humility is Mork's weapon.

Mork and Mindy get a new neighbor and invite him to dinner, where Mork cooks.

Mork tells Mindy that he's been transferred to another planet and will be leaving in a few days.

When Nelson receives threatening phone calls, Mork and Mindy investigate a shady club.

A kiss from Mindy brings out Mork's suppressed emotions.

To keep excitement in his relationship with Mindy, Mork starts fights with her and then wants to kiss and make up.

Mork has been making boring reports to Orson, so Orson erases all of Mork's memories of his family. Mindy and Mearth do everything they can to get Mork to remember them. Mindy finally breaks the memory dam by kissing him.

On Halloween, Mork and Mindy believe the house she grew up in is haunted.

Happiness and loneliness haunts us all. Mork activates his time machine to age himself to be a companion to Mindy's grandmother after she feels all her friends have passed.

When Mindy goes away for the weekend, Mork and Mr. Bickley go for a night out at a singles bar.

Mork dresses up as his favorite hero, Squellman the Yellow. One boy at the day care idolizes Billy the Kid and starts immitating him in a dangerous game. Mork and Mindy teach him a lesson about violence.

Mork becomes a vagrant in order to help Mindy open a children's hospital.

Grandma Cora comes to visit, but the trip takes a turn for the worse when she gets mugged. Cora feels very scared; Mork thinks up a plan to get even with the muggers.

Mork is beside himself when he hears that Xerko is coming from Ork to visit him. Xerko turns out to be an arrogant and egotistical man and he wants Mork's job of reporting back to Orson. Xerko and Mork duel to see who will get the job.

Mearth wants to go to school and gets sent to school on Ork. Mearth comes home crying because the other kids made fun of him and he hates the teacher. Mork and Mindy take Mearth back to class and Mearth uses his parents as a show-and-tell item which gains the respect of his classmates.

Mork is jailed for freeing an escaped convict who's captured at the music store. Exidor begins worshiping O.J. Simpson.

Needing a vacation, Mork gets Orson's permission to swap bodies with other aliens.

When Wheels, the owner of the daycare center, announces plans to level the building, Mork challenges him to a skate-off through the city of Boulder.

While in the hospital, Mindy is mistakenly scheduled for brain surgery.

Mindy tells Mork she thinks they should date other people. He takes lessons from a swinger named T.N.T. and turns into a party animal.

Mork learns about Christmas, and his thoughtful gifts are unforgettable.

When Mindy is reunited with her ex-fiance, she wonders what it would be like to raise a family, while Mork wonders what it would have been like to have had a mother. Mork kills two birds with one stone by using his Orkan Age Machine to regress himself to 5 years old.

Mork is threatened by another alien.

When marital problems plague Mindy's father, he turns to Mork and Mindy for help.

The Elder (whose name is actually the sound of ""blowing a raspberry"") converts the attic to a typical Orkan house, hoping it will help Mork revert to his old Orkan ways.

While shrunk, Mork finds himself in an odd world.

Exidor's mother shows up and tries to keep her son from getting married.

Mork and Mindy are overjoyed when they meet Kalnik, an alien from Neptune who has also married an Earthling. Things go awry when they become suspicious of Kalnik's true intentions.

After the evil Kalnik has bombed their apartment, leaving them on the run, Mork, Mindy, and Mearth decide their only chance of surviving is to go public about Mork's real roots.

Mork bucks hard for a promotion from leader Orson on planet Ork, and unintentionally comes up with a report on how to stay happily married on Earth.

Mork goes on a secret mission for the Air Force.

Kalnik discovers Mork, Mindy, and Mearth in their demolished apartment. Mork clicks the heels of his magic shoes in an effort to escape with Mindy to Rome. But the shoes have been damaged, and Mork and Mindy wind up with prehistoric tribesmen in an Okus cave.

Mork becomes insecure when he thinks he doesn't have Mearth's respect. Mearth finds Mork's spacesuit and Mork wears it as a superhero costume. Mork and Mearth go to a bar, looking for some bad guys and they find more than they bargained for.

Mork performs a wedding ceremony to marry his friend Eugene and his girlfriend.

Mork shrinks after taking a cold capsule.

Dr. Exidor determines that Mork is pregnant. Mork gives birth to an egg via his navel. Mindy has trouble accepting that in the egg is their child. The egg grows and hatches a full grown, elderly man as Mork and Mindy's baby.

Due to a misunderstanding about Monopoly money, gold-digger Kathy believes Mork is rich, and claims she is carrying his child.

Mindy's efforts to make Mork act like a normal earthling backfire, radically changing his personality. Orson sends the most respected Orkan elder to Earth to help Mork regain his Orkan traits.

At Mr. Bickley's 50th birthday party, everyone shares what they regret in their life. Mindy makes excuses to put off her turn, but after everyone leaves, she shares her regret with Mork.

Mearth goes on a trip with Fred so Mork and Mindy have a week to spend alone together. They find that without Mearth at home, they have nothing to talk about. They have a fight. So, to make up, Mork takes Mindy to the place they first met.

Remo fires Ruby, the pregnant singer of the restaurant's band. Mindy takes in Rick and Ruby and she tries to convince Remo to rehire them. She makes a bet with Remo, so he rehires the group. Ruby goes into labor during a performance and Mork takes her place.

After hearing about how Rumplestilskin spun straw into gold, Mork and Mearth try to make polyester into gold. Mindy dreams that they become millionaires and live in a mansion with servants.

Mindy has a broken record player that the repairman won't fix for a second time. Mork and Mindy want to get revenge on the repairman, so Mork puts him on trial before a jury of broken appliances.

Mork is romanced by another alien.

Fred's successful, but domineering brother, Dave, comes to dinner. Mindy accidentally eats an Orkan dessert which makes her behave strangely. Things get even worse when Uncle Dave eats some of the dessert.

When Mr. Bickley steals Mork's age machine, he unknowingly causes Mork's age to change from that of a baby to middle aged.

Mearth is allowed to have some of his Orkan friends over and Zelka ends up spending the night. Mork and Mindy explain the facts of life to Mearth when they assume something happened between him and Zelka.

Exidor wants to propose to a meter maid and asks Mork for help.

Mork thinks he is a priest when he dresses in a black jacket and white collar, and begins advising church parishioners.

When Mork becomes addicted to advertising, he becomes a ""buy-a-holic"", causing problems for Mindy.

When Mork inadvertantly costs Mindy a potential job, he decides to return to Ork. Orson then shows him what would have happened to Mindy over the last year had Mork not been there.