This crazy series begins when Janet Wood and Chrissy Snow, two attractive women, have a going away party for their roommate, Eleanor (who we'll meet in Episode 44). While trying to find someone to share the rent with, they find party crasher Jack Tripper in their bathtub. They have their doubts at first but when they find out that Jack is the only one that can cook (by going to cooking school), they want him to stay. The hardest part of this is trying to convince the landlords, Stanley and Helen Roper, that Jack is indeed good company. Stanley doesn't like the idea of a man living with two women, knowing what can go on behind closed doors. Jack pretends he is gay so that he can have a place to live. It works, and the rest is sitcom history.

Jack is all set to move into Eleanor's room, until Chrissy's mother unexpectedly shows up. Chrissy's mom does not know that she and Janet live with a man, so she tries to keep them out of sight. Janet and Jack go to the Regal Beagle to hide out, and Mrs. Roper finds out that Jack is not really gay. She manages to keep it secret from Mr. Roper.

Mr. Roper sets Jack up with his niece, who turns out to be very promiscuous in her way. Jack finds out that Mr. Roper set him up in order to turn him straight, and if he is, out he goes.

Larry Dallas, a slick car salesman, unloads a puppy on the trio. Knowing that Stanley doesn't allow pets, they try to hide it. The puppy is necesary for Chrissy's sleepwalking problem.

Jack's masculinity is put to the test when a big bully tries to have his way with the girls.

Oh my! The trio's rent money is missing and they scramble to get more money so Stanley will not kick them out. Unbeknownst to them, Stanley picked up the money earlier that day.

After Jack and Chrissy disturb Janet's time alone with her date, the trio agree to arrange reservation times for the apartment. However, Jack has an offer he can't refuse and he tries to renege on the agreement.

In order to earn tuition money, Jack takes on a variety of odd jobs, including an encyclopedia salesman and a nude model in a magazine layout.

Janet's co-worker Chloe gets a promotion after only being hired for a couple of weeks. Janet's upset because chloe got the job because of her looks not her skills.

Chrissy and Janet go away on a trip, and Jack promises he won't throw a party. As soon as they're gone he goes back on his word. When Mr. Roper comes up to put an end to the party, he ends up joining in, but wakes up the next day in Jack's bed...WITH Jack, and he thinks he's gay.

Chrissy's new man is married, but she thinks he's single, and now her friends must prove to her the truth.

Jack must help Chrissy regain her confidence in her sex appeal, since he's the one who made her lose confidence after failing to come on to her when they spend a night alone in the apartment.

Mr. Roper tries to get his old car back from Jack and the girls after someone else makes an offer to him for a lot of money.

Jack agrees to cook a gourmet meal for Chrissy's date, who happens a very fussy critic when it comes to gourmet food.

Chrissy's naturally friendly nature gets her arrested for prostitution when a policeman thinks she's propositioning him.

During one of their marital disputes, Stanley thinks he is attractive to a younger woman (a friend of Jack's) who befriends him as a favor to Jack.

Janet is shocked at the misguided attention of a jock she used to have a crush on from high school. She realizes what a creep he really is once he is all over her, thinking their past will win her over.

Jack's uncle writes Mr. Roper a bad check and the trio try to get it back.

While Helen is out looking for a job, Stanley gets cooking lessons from Jack.

The kids and the Ropers spend Christmas together, but they would rather be at another party.

Stanley gets Helen a fur coat, unknowing that Jack is holding the gift for Mr. Travers.

Chrissy steals Janet's date by accident, and they refuse to speak to each other. It's up to Jack to get the two girls together again.

Janet made a date at the same time as her babysitting duty. She gets Jack and Chrissy to take her place as babysitters.

Chrissy has a new boyfriend who's a film buff, so she decides to become a filmmaker. She gets a super-8mm film camera from her parents and takes lots of very amateur footage of the trio fooling around. Meanwhile, Jack' s friend Larry has some footage of his own - a porno flick he's bought from a stranger for $50. Larry comes over to borrow Chrissy's projector, expecting to have a private showing with Jack. Unfortunately, Roper spots the film and decides to join them. Then Chrissy and Janet show up and it looks like it's going to be a very embarrassing premier showing. What shows up on the screen, however, is a Woody Woodpecker cartoon. Larry is furious, but Jack is hysterical and relieved. Meanwhile, Chrissy finds out her boyfriend has no enthusiasm for her films, and drops him for a painter.

Janet offers Jack a job in her flower shop, and Jack takes that opportunity to goof off during company time. Janet wants Jack to be more serious about his job and they end up not speaking to each other. They forgive each other when Janet needs help in fulfilling an order.

Jack's blind Navy friend comes to visit him and the girls.

Because of one of Larry's tricks, Jack is in trouble. A girl calls him claiming that he might have gotten her pregnant. The girls think that Jack is the father, but actually Larry used his name when he dated her. Jack hears this and thinks that he got his recent girlfriend, Linda, pregnant.

Jack, Janet and Chrissy weeds the Ropers' backyard and they find a plant which they think is marijuana.

Chrissy's father, a reverend, does not approve of Chrissy's life living with Jack and decides to take her home.

Janet has two tickets to see Frank Sinatra, and Chrissy and Jack fight over who gets to go with Janet.

Jack falls for a stewardess who plays him for a fool.

Jack pretends he has a cold when Mr. Roper overhears him making a date.

Janet and Mrs. Roper participate in a nude beach protest, and end up walking home without their clothes.

Chrissy discovers a spicy diary and uses it to perfect her typing skills. Mr. Roper reads the diary and thinks that Chrissy has it in for him!

It's a test of willpower when Janet and Chrissy give up food in exchange for Jack giving up girls!

After Stanley's friend fails to fulfill their deal of loser buys the beer, Stanely works himself into an outrage. Helen tries to patch things up between Jerry & Stanely by trying to get Jerry to apologize. When Helen makes a date to meet up with Jerry, Jack and Chrissy both assume that she is having an affair.

Janet's little sister visits the trio and instantly falls for Jack.

Chrissy is tricked into becoming a panhandler by a con-artist.

Larry introduces the trio to his new fiance. Jack learns that Gloria has always had the hots for him, but Larry believes it to be the other way around. Jack unsuccessfully tries to talk Larry out of marriage. Chrissy unknowingly stumbles upon the real reason Gloria is marrying Larry, because he told her he owned a used car lot. Larry figures out what Jack was trying to tell him, and Gloria learns the truth about Larry. The conclusion is something both Gloria & Larry agree on!

Chrissy is invited to go on a business trip with her boss, and Jack thinks that the boss wants to get it on with her. What he doesn't know is that Chrissy's boss is a woman.

Laurie, the trio's babysitting charge, has a crush on Jack, much to her boyfriend's dismay.

Chrissy a thief? No way! At least that what Jack thinks when he sees her with his money.

After canceling a party the trio were holding, Helen (in disgust) leaves Stanley.

Eleanor makes her first appearance in the shower when Jack meets her for the first time. Knowing that Eleanor was Janet and Chrissy's old roommate, he thinks that Eleanor is moving back in and he might have to leave. What he doesn't know is that they are planning a surprise party for him, but it's too late when Jack tries to ruin the party by having Larry streak across the room!

Jack tells Janet and Chrissy that he's going out with an old woman. Janet and Chrissy thinks that it is roper's aunt after she shows up with his swimming trunks after Jack says that he went surfing with his new girlfriend.

Mr. Roper thinks that Chrissy is pregnant when he overhears a conversation in a pipe adjoining their bathroom. The real deal is that Chrissy has a wart. Also, Linda stays at the apartment temporarily while Janet is off visiting her parents.

While Jack is catering a party for Chrissy's business, Chrissy's lecherous boss tries to get it on with Chrissy.

Jack finally has a chance to get it on with Chrissy when a mouse terrorizes the apartment building.

Jack ruins Janet's date when he has a broken leg.

Chrissy accidentally eats Jack's pie right before a pie contest he is supposed to be in.

Helen thinks that Stanley is leaving her for another woman, but in actuality, the woman is a real estate agent who got him a great deal on a house in Chevroit Hills. Stanley tells Helen that they have sold the building and are moving into their new house and their own spin-off.

Fed up with the girls not doing their share and helping out at the apartment, Jack angrily leaves and becomes a live-in cook for Larry's boss and his promiscuous wife.

Jack goes out with a girl, and he is afraid that she will leave him due to his living arrangements. But what he doesn't know is that she has the same problem that he does.

Jack mistakes a visit from the FBI for a reference for a former Navy buddy as a mission to get him.

Roper plans a surprise disco party for his wife. This is an episode of the Ropers packaged in syndication with Three's Company.

Lana Shields needs an escort and instantly falls for Jack, who wants nothing at all to do with her.

The trio and Larry meet Mr. Ralph Furley, the new landlord, after accidentally selling all of his furniture, believing it was the Roper's old furniture.

Chrissy gets a new sales job.

Jacks wants to be aggressive to get the better of Mr. Travers.

Jack saves the life of a man who happens to be rich. A s a reward, he gives them an apartment in a very affluent neighborhood.

Chrissy feels sorry for a homeless man and lets him stay with her, Janet and Jack, much to their dismay.

Larry's girlfriend wants to be an actress, so he tells her that his friend Jack is a famous commercial director. Jack, Janet, Chrissy, Furley, Lana, Larry, and his girlfriend Laura go on a camping trip that's anything but relaxing.

Chrissy falls and hits her head in the bathtub while trying to put up a shower curtain. Jack and Janet take her to the hospital when she starts to get dizzy. They misunderstand the doctor when he comes out of Chrissy's room crying, and think that she has only a short time to live.

Chrissy loses Jack's money and they can't pay the rent. So Chrissy sees a loan shark and borrows money on Jack behalf.

Jack gets a job on a cruise ship and is invited to take only one guest. He has a choice between Janet and Chrissy and he sure doesn't want to take Lana of all people. So he makes it so Mr. Furley can go on the trip with Lana, who thinks that jack will be on the ship waiting for her.

Chrissy pretends to be Mr. Furley's wife so Mr. Furley can show off to his old rival.

The trio think an advice column was written about them; that Jack is secretly dating one of the two girls without the other girl knowing.

Reverend Snow has a chance for a new appointment on the condition that his daughter Chrissy move out of the apartment.

After an unsuccessful date, Janet comforts Larry, who takes her kindess the wrong way when he thinks that she wants him.

Jack goes out with a girl who has a muscular brother that doesn't like her sister dating.

Furley hopes to ""straighten"" Jack out by giving him love lessons. If he is indeed straight, he has to move out.

Chrissy borrows her policeman cousin's handcuffs and accidentally gets locked together with Jack who has a big date waiting for him.

Jack and Chrissy believe Janet wants to have a baby.

The trio help out a runaway boy.

Jack's brother comes for a visit, but Jack doesn't like him because he always seemed to be better than Jack. It gets really serious when he has designs on Chrissy.

Chrissy wins money at the racetrack and the trio get into a fight over how to use the winnings. It takes a trip to the psychiatrist's office to see that the money is tearing them apart.

Chrissy plans a rendezvous with a secret admirer.

The roommates thinks that Furley is going to kill himself and they show praise for him.

During a cooking class exam, Jack's dishonest friend switches dishes with him, making Jack unable to graduate cooking school.

Jack has to fix dinner for 4 dates at the same time!

Jack's female boss makes a pass at him and he sues her for sexual harassment.

Chrissy goes to work at a convention as a hostess with an old friend of hers, not realizing the job is being a high priced call girl.

Jack pretends to be a professional skier to impress his new date who is a ski nut.

Jack and Larry both go at each other for the affections of one woman and Larry takes advantage of Jack's new job as a store window display mannequin to embarrass him in front of her.

Jack gets a job as a busboy and at the same time is misrepresenting himself to his new date as the chef.

Cindy Snow moves into the apartment with Jack and Janet.

Jack goes to Cindy's place of employment to fight for her job back after she loses it.

To get a new job, Jack assumes the identity of another person, not knowing that a lot of people have it in for that person!

A little old lady adopts Jack as her so-called 'son' but becomes more trouble than she is help when she starts interfering in Jack's love life.

Jack set up a date for his girlfriend's father with Janet, who doesn't realize how old he is.

Janet's parents come to visit, and Janet has to pretend that she and Jack are husband and wife.

Cindy is flourished with the wealth of an older man who wants her to be his bride. Her persistant refusal to wed him doesn't seem to be enough, so Jack and Janet try to figure out a way to discourage him. They soon find themselves tempted by his generous promises for the future, before coming to their senses and rescuing Cindy from her worst nightmare.

The roommates help Ralph stand up to his brother, Bart Furley, who owns the building.

Jack and Larry switch apartments to see how each other lives their life.

Dean Traver's niece gets Jack in trouble, and Janet and Larry try to help him out.

Jack and Janet think that Cindy is going to have a baby.

The Ropers are back in town, and Stanley has a falling out with Mr. Furley when he catches him in bed with Helen.

In order to date Furley's niece, Jack must pretend that he is his fictitious brother, Austin.

Jack fakes his death to avoid dealing with a girl's jealous boyfriend.

Cindy goes to meet her father while he is visiting town but Jack and Janet think that she has been kidnapped.

Jack learns that honesty is not always the best policy when he agrees to tell the absolute truth.

Jack cuts his finger and goes to the hospital. While there, he meets a sassy nurse named Terri Alden and they do not really hit it off. Meanwhile, Cindy is leaving for UCLA and Janet is looking for a roommate and finds Terri, much to Jack's dismay....

Terri tries her best to warm up to Jack, which proves to be totally unsuccessful. Jack now hates her even more and wants her out. At Cindy's going-away party, he and Larry really insult and play mean jokes on Terri. Jack has a chance to spray Terri with water, but he ends up spraying himself. He really wants Terri to stay with them and now Terri is added to the cast.

To boost Jack's confidence, Terri turns on the charm, causing Janet to suspect that her new roommate's interest in Jack is more than platonic.

Jack is giving cooking lessons to raise some money and Terri mistakes them as love lessons.

Jack comes to the rescue when Janet meets an unscrupulous ballet dancer who tells her she has real talent to be a dancer in order to sleep with her.

Jack lies to Janet about having a date that night so that he can go out with 'Greedy' Gretchen.

Jack and Janet think a doctor that Terri brought home is really a mental patient.

Jack witnessed a robbery and now wants protective custody to save him from the return of the criminal.

Jack has a date with Angelino's daughter against her father's strict wishes and so to turn her off, pretends he is with his ""wife"" which is really a CPR dummy.

Janet unintentially fixes Terri up with the guy (Bob) she wanted to go out with. Terri tries to smooth things out with Janet by fixing her up with him, but Janet refuses to be the second choice. Jack tries to smooth things out between the girls and loses his own date ( Donna ) to Bob as a result.

While taking fighting lessons from Terri, Jack accidentally tackles an undercover cop making an arrest and gets arrested for assault.

Jack falls in love with a beautiful woman and wants to serenade her. He goes to her apartment and sings at the window, but what he doesn't know is that he has serenaded an overweight girl. The overweight girls thinks that Jack likes her, but the beautiful woman trashes her in front of Jack. Jack decides to have a date with the overweight girl instead.

Ralph Furley falls in love with a woman whom the trio believe is a golddigger just out for whatever Ralph can give her financially.

Jack overhears a conversation between Janet and her friend, a visiting nun, who has decided to leave the convent to marry the man she loves. Jack thinks he is that man and tries to convince her he is no good by pretending to be an alcoholic wharf rat.

To help give Cindy a job, the trio agree to hire her as their maid but with catastophic results.

Janet's new boss is an efficiency expert and she drives Janet nuts. What doesn't help matters any is that Jack falls for her.

Larry uses Jack's name while out on a date that goes bad and when the girl's brother comes looking for Jack, he must hide out on Cindy's grandparents' farm until the heat is off.

Jack agrees to help out a friend by posing as a head chef and becoming the favorite cook for a mobster with a spicy appetite.

Jack's new girlfriend is rich and she wants Jack to do better than his friends and his job.

Jack pretends he is a doctor to impress his grandfather.

Jack tries to win praise from a food critic, who is nothing more than a leich.

Terri lines up a fancy new house for the trio to move into but Larry and Mr. Furley, not wanting to see their best friends leave, plot to make them feel wanted enough to stay.

Jack gets his own cooking show and hires the girls as his assistants with unexpected results.

Janet buys a blonde wig to improve her image, but ends up breaking bad on her friends.

Janet needs a date to impress a new rich man she met and asks Jack to escort her to the ball which is held on a private island. Jack, afraid of flying, gets some tranquilizers from Larry, much to Terri's dismay. Jack accidentally mixes them with liquor and becomes a ""party animal"".

Jack & Janet sign up for a computer dating service, and both decide to lie on the application. Little do they know the computer has set them up together. They decide to go ahead with the date, but Terri thinks that they went out with each other behind her back. Larry tries to clarify the whole situation without knowing the whole truth himself causing Jack and Janet to believe he is making a play for Terri. The race is on to sort through their tangled stories to find the real truths.

Jack and Janet end up in the same bed, and Jack doesn't even remember how he got there.

Jack goes to the dentist who terrorizes him when the dentist thinks that Terri left him for Jack.

Larry asks Jack to take over on a date for him and Jack gets mixed up with diamond smugglers by mistake.

A newspaper article about three people sharing a similar living arrangement to the trio has them wondering if one of them is spreading gossip about the others.

With Mr. Angelino's help (along with Mr. Furley), Jack gets his own restaurant!

It's the first night of Jack's Bistro and no one even knows about it! Larry drums up business by bringing in his Greek relatives.

As a favor to Felipe, the trio allows his niece to stay with them until her wedding to prevent the immigration department from deporting her. Through a comedy of errors, everyone suspects Jack and the girl spent the night together.

Janet sets Jack up with an old director friend of hers from school whom she didn't know had since gotten married. That's okay, though, because the friend wanted to have an affair anyway.

Jack hosts a Sunday brunch at the Bistro to prove to a pastor that it's a wholesome, family-oriented restaurant.

Larry wants to be a singer, but Jack finds out that he can't even carry a note when he sings at his restaurant, meanwhile Mr. Furley is helping Jack out in the kitchen and is messing up every order.

Terry dates an ex-murderer, which scares the total crap out of Jack and Janet.

Larry's sister is visiting and Larry asked Jack to take her out. After Jacks and his sister stay out late, Larry suspects that Jack is trying something with his sister.

Rumors are flying everywhere when Terry hears one about two friends and spreads it everywhere.

Jack must pay a bribe to an inspector in order to get a health permit so he sets up a sting operation to catch him redhanded but leads the police to believe that it's a drug bust they're working on.

Terry falls for a soap star, who happens to be a lecher who trying to maintain his image.

Jack finds out the hard way that when it comes to boxing, he is no Rocky.

Janet and Terri bet Jack that he can't go without women for a week. Although he is intent on proving them wrong, he weakens when he sets Furley up with an older woman whose bombshell daughter sweeps Jack off his feet.

Jack thinks that Janet is going out with Ralph's nephew when she trys to help him be a good gentleman when he meets girls.

Jack accidentally stumbles onto Angelino's love hideaway when he decides to sleep in the little apartment above the restaurant.

Jack wears a fake mustache to improve his image, but accidentally makes Terri fall in love with him.

Jack's Navy budy wants to get into the restaurant business, but tries to take over Jack's Bistro.

Janet and Terri overhear and misunderstand a conversation Jack and Mr. Angelino are having about finances and think Jack is in debt. They arrange for Jack to 'win' money on a faked radio show; money borrowed from Mr. Furley and Larry. However, Jack uses the sudden winfall to buy a new leather coat he's always wanted.

Jack's girlfriend wants him to be a father to her child.

Jack finds a magazine quiz about secret loves and thinks that either Janet or Terri is in love with him. He then gets them both alone in a cabin to find out who the mystery lover is.

Jack goes to an ATM machine and the machine goes haywire and spits out all of the money on Jack. He tries to get it back to the bank, but the bank is closed. Janet suggests that he hide it in the couch, which, incidentally, gets takes away by Furley who wants to put in a new couch!

Jack tries to get a scathing letter from a food critic who thinks has written a bad review about his restaurant.

Jack gets Larry to go out with Janet's visiting friend because he already had a date planned.

Jack goes out with a sex therapist and Janet thinks that she is a prostitute.

Larry enters one of Jack's recipes in a cooking contest which wins, but Jack finds out that the contest is open only to women. Jack dresses as a woman to enter a bake-off competition.

Jack's father comes to two, but Jack is mad at him because of all the heartache he had caused.

Terri goes out with a doctor who happens to be married, and the roommates plan to have the wife catch her husband and Terri together.

Jack and Larry gambles with a lot of fake money, and they lose a lot.

The trio is suspicious of a new tenant, who they think is a jewel thief and a murderer. In actuality, he is a ventriloquist practicing for his act.

Janet's aerobics job seems to be in jeopardy, and Jack tries to go out with the female boss.

To help an old school chum save her marriage, Jack agrees to talk to her husband, a very jealous, big man. However, he learns she met with someone that day and now has poison ivy and so will the man she met up with...Jack.

When they surprise a burglar robbing the restaurant after store hours, Jack and Ralph are locked in the meat freezer by the thief.

After Jack finds a stray kitten and can't keep it due to the no-pet clause, the trio leaves it at Mr. Furley's doorstep. Mr. Furley is having fun until his brother Bart sends over an apartment inspector and the cat's owner winds up at the trio's apartment.

Jack's navy buddies take him to a tattoo parlor while he's drunk.

Jack helps out an art teacher by posing nude for her class.

Jack smashes Janet's new car and fakes amnesia to save his skin. The girls realize that Jack is fooling them and decides to get even with him.

An old flower shop customer of Janet's leaves her a little something in his will and his family tries to cut her out.

While flying, Jack gets a fear of heights and a stewardess named Vicky Bradford helps him out. They even go out for the first time, against her father's wishes. Meanwhile, Philip, the guy we met in the last episode, proposes to Janet.

Jack and Vicky are really good together, despite Mr. Bradford's objections. Janet and Philip get married in the apartment, and Jack wants Vicky to marry him as well.

When Jack proposes to Vicky, she turns him down cold. The reason is that she's afraid of marriage because it might fail like her father's did. They decide to live together. The trio finally moves out of their apartment and into their new lives: Terri is going to Hawaii to work with poor children, Janet and Philip move into their new place, and Jack moves into the apartment above the restaurant with Vicky. As they begin their new life together, Mr. Bradford comes in and tells him that he is the new landlord! With that, the spin-off series Three's a Crowd begins.