George's manager at the TV station orders him to lose 15lbs so George decides to go to a fat farm and he brings Mr. Belvedere along for the excitement. However, they soon find themselves having a hard time sticking to the regime. Meanwhile, Kevin babysits his girlfriend's cat who escapes and holds Marsha, Heather and Wesley hostage.

George and Wesley have resons for wanting to play hooky from work and school. When they discover one another sneaking around the house they decide to play hooky together and decide to go fishing. However, a last minute trip to the market gets them into trouble when they run into Mr. Belvedere and two armed robbers.

George is having a fit when he and Wesley have to go to the dentist for a routine checkup. However, when they come back Wesley is the one having the fit, the dentist suggested he get braces. Meanwhile, Mr. Belvedere buys Kevin's old car and he doesn't know that Kevin's unloading a lemon.

Marsha's position at the Legal Hut has been draining all the excitement out of her and when she's offered a higher position she secretly decides to turn it down. Little does her family know, that she has quit altogther at the Legal Hut and has taken up a position as a singing waitress at a 50's style restaurant.

After Mr. Belvedere trips over a skateboard and falls down the stairs, he becomes wheelchair bound with a broken leg. Thus, the family seeks a temporary housekeeper and one presents himself in the shape of Mr. Belvedere's midget cousin, Galen, who's out for more than just a job and a friendly visit, he wants revenge.

Kevin has had it with his foreign exchange student roommate, Anatole, who keeps a pet goat in the apartment. The last straw is when Anatole invites some friends over for a party and Kevin promptly tosses him out. Meanwhile, for a business class, Kevin observes the operations at a plumbing supplies company and meets a fiesty woman whom he discovers that she lives next door to him.

After Kevin kicks him out, a furious Anatole shows up at the Owens door demanding a place to stay for him and his goat. However, the family gets fed up and demands he leave but before he does, he puts a curse on the family. Meanwhile, Kevin finds himself constantly bickering with his new roommate, Casey.

George is offered a guest appearance on a local talk show and the host, Barbara Collins, becomes smitten with him. Later, Geroge learns of her reputation which just may threaten his marriage. Meanwhile, a makeover from Heather has Wesley becoming a slave to fashion.

Heather and Angela volunteer down at a soup kitchen and Heather befriends a homeless man who is being thrown out of the shelter because his two week limit is up. This prompts her to bring him home with her and she hides him in the attic. Meanwhile, a golf buddy of George's dies while having sex and George becames scared the same thing might happen to him.

Wesley and Heather talk their parents into letting them thow a New Years party and to get Mr. Belvedere out of the house they set him up with the Hufnagel's housekeeper, Ilsa. However, things get more serious than intended and Belvedere tries to fend off her advances. Meanwhile, Kevin becomes an unwelcome houseguest when he falls ill.

George comes home with a surprise for Wesley, something that Wesley had been wanting for years, a dog. However, Wesley is less than satisfied, it seems he's gotten past that phase and does his best to ditch the cute little pooch. Meanwhile, Heather becomes friends with a mystic which threatens her friendship with Angela.

A new director at the TV station is making changes and has George filling in for an ailing Skip who is having surgery. However, when Skip returns he finds himself out of his old job and his new job as host of a horror program isn't as satisfying. Meanwhile, Heather tries to pay for the repairs of Marsha's car after she scratches it.

The town of Beaver Falls is stricken with fear with the Highheel Bandit on the loose and the neighborhood rallies together and forms a task force headed by two member's of The Happy Guys of Pittsburgh club. This leads George, Kevin and Mr. Belvedere to dress and drag and serve as decoys. Meanwhile, Wesley corrupts the young boy whom Heather has been babysitting for.

Wesley is running for student body president is sure he will win because he doesn't have an opponent. However, at the last moment he gets one, in Billy Podell, a parapalegic, whose situation makes Wesley shy away from slander, but it doesn't shy Billy away from doing it to Wesley. Meanwhile, Mr. Belvedere hopes for a surprise birthday party even though he said he didn't want a fuss.

To celebrate their wedding anniversary, George and Marsha go on a romantic cruise but it turns out to be a cruise from Hell. Meanwhile, Mr. Belvedere takes a sojurn to England to rub elbows with royalty leaving Wesley and Heather at the mercy of Kevin whose pushy roommate, Casey, barges in and takes over.

Heather and Angela are members of a Speech club and a certain boy catches both their eyes leaving the boy in the middle of a fued and he must decide between them. Meanwhile, Marsha redecorates Mr. Belvedere's room and Wesley and him become roommates and Wesley quickly becomes sick of his constant practical jokes.

Kevin wants to take the next step in his relationship with his roommate Casey but they get an interruption in the form of Wendy and her husband who pay them a visit and Wendy makes it known that she still lusts for Kevin. Meanwhile, a hick family moves in down the street and torments Wesley, Heather and George.

Mr. Belvedere decides to try to capitalize on his years of living with the Owens family when he goes though his journals to use as references on a book that he's writing. Meanwhile, Kevin joins the pep squad in an attempt to meet girls.

For some extra money, Kevin picks up a job as an escort and after having an encounter with a sexpot, Kevin meets a sweet old woman whom he hits it off with and even begins thinking seriously of marriage when she proposes. Meanwhile, the Owens' monthly bills have gotten out of hand and Mr. Belvedere suggests a strategy to curb the family's expenses.

Wesley is trying to get the attention of a girl he likes and begins writing love letters to her. Meanwhile, Marsha and George's spring cleaning unearths some old love letters from an old flame and this prompts her to wonder why George can't be that romantic. In response, George begins plagerizing Wesley's poems. Meanwhile, Kevin and Mr. Bevedere become the repairmen for Kevin's apartment building.

Wesley has been grounded to the house after yet another prank on the Hufnagels but he's determined to sneak out. When Mr. Belvedere discovers he's gone he goes after him and ends up in the hospital in a coma after wrapping Marsha's porsche around a tree. Mr. Belvedere is then taken on an ""angelic"" journey of what the Owens' would be like without him.

Marsha begins cooking meals, to her family's horror because her meals always turn out inedible but to help boost her self-confidence, Mr. Belvedere secretly substitues her meals with his. However, things may blow up in his face when she plans to cook a meal for her boss and doesn't allow Mr. Belvedere in the kitchen. Meanwhile, Kevin's attempt at being a stripper nearly kills him.

Yet another prank on the Hufnagels prompts punishment for Wesley who is suppose to clean out the attic. However, he finds himself with some company, when he gets locked in with Mr. Belvedere and they recall (thorough flashbacks) what life has been like in the Owens' household since he moved in with the family.