Beaver's teacher, Miss Canfield, sends a note home with Beaver and the other kids convince him that it's news that he's getting kicked out of school. Beaver and Wally take steps to hide the note from Ward and June.

Beaver and Wally send away for an alligator and they secretly keep it in the bathroom. When the alligator falls ill, the boys get some advice from Captain Jack, an owner of an alligator farm. However, keeping him a secret is going to be hard, the alligator is growing and they need a new place to keep him without June and Ward finding out.

The Cleavers have new neighbors, the Donaldsons, and June sends Beaver over to welcome them with a vase of flowers. However, when Mrs. Donaldson thanks Beaver by kissing him on the cheek, Beaver becomes convinced that Mr. Donaldson will kill him because he let a married woman kiss him, and it's all thanks to Eddie Haskell, who planted that idea in Beaver's mind.

When June goes on a trip to visit her sister, Peggy, June's Aunt Martha steps in and stays with Ward and the boys. Ward and the boys do their best not to hurt Martha's feelings, but Beaver has the hardest time when she buys him a suit, knee socks, a cap, and short pants and makes him wear the outfit to school.

June and Ward make Wally and Beaver promise that they won't go to the movies and see a scary movie. However, Wally and Beaver are talked into seeing it, thanks to Wally's so-called best friend, Eddie Haskell. The movie has quite an influence on Beaver, who makes a voodoo doll, names it Eddie Haskell, and sticks it with pins.

Beaver is invited to Linda Dennison's birthday party and quickly discovers that he is the only boy that she invited. Fearing for his reputation, Beaver tries his best to get out of attending, but June and Ward are insistent, not aware of the situation Beaver's in.

The local bully, Lumpy Rutherford, has been picking on Beaver and Wally and, thanks to a story Ward tells them, they decide to play a joke on Lumpy. However, their ploy catches the wrong person—Lumpy's father and Ward's co-worker Fred Rutherford, is caught in the trap.

Wally and Beaver want to get brand new bike and they ask Ward for some money. He suggests that they earn the money. This leads Wally and Beaver to get a job delivering papers. Later, while trying to help the boys out, Ward and June inadvertently almost get Wally and Beaver fired.

After Ward's bragging about Wally and Beaver being responsible, Herb and Janet Wilson assume that it would be all right to leave their 4-year old daughter in Wally and Beaver's care while they go out to a party with Ward and June. Trouble begins when the youngster locks herself in the bathroom.

Ward tries to teach Wally and Beaver the importance of saving by giving them a piggy bank. The boys quickly save up a handful of change and are all ready to spend it on some baseball equipment. However, unknown to their parents, they change their minds and decide to spend the money on a most unselfish gift.

Wally goes away on a trip with the Boy Scout troop that he belongs to, leaving a lonesome Beaver behind. Finding his friends to be busy, Beaver takes up other means to make the time go by.

Wally begins to outgrow his "sloppy" faze and becomes much neater. This is noticed by Ward and June who try to encourage Beaver to undergo the same transformation. However, Beaver changing like that just seems too extraordinary of a task.

Beaver makes a trade with Larry Mondello: a glass doorknob for a Chihuahua. Larry found the dog in his garbage can, so when Beaver brings it home, Ward immediately breaks the news that he's going to place an ad in the lost and found and that Beaver probably won't be able to keep the dog. Despite this, Beaver quickly begins to grow close to the little pooch.

Ward helps Beaver and Wally build a miniature race car powered by a lawn mower motor and Ward makes the boys promise not to use it without him being with them. Later, Larry talks Beaver into taking it for a spin resulting in being pulled over by a traffic officer.

While playing baseball in the street with Wally, Chester and Tooey, Eddie hits a baseball through the Cleaver's window resulting in Ward forbidding the boys to play baseball so close to the house. However, later, Beaver talks Wally into pitching one, but this results in a broken car window.

After a week long visit with their Aunt Martha, Wally and Beaver prepare to head home to Mayfield on a train. After talking Martha into letting them buy their own tickets, they discover they're short the money after spending it on junk food and find themselves wondering how they are going to get home.

Wanting to be liked by Wally's friends, Beaver makes up a wild story about the vacant lot next to his house being an Indian battle ground. After making a bet with Eddie, Beaver has Wally help him plant artifacts in the lot. However, that is forgotten when the kids make a discovery that they believe will make them rich.

June has Wally stay home from school when he comes down with a sore throat and suddenly Wally is emersed in attention from his parents, friends and doctor. Jealous and feeling left out, Beaver fakes illness, seeking that same attention.

Wally and Beaver are helping Ward clean out the garage when they run across Beaver's old teddy bear, Billy. Beaver reluctantly throws him away after Ward and Wally tell him he's too old for dolls. However, Beaver changes his mind but he's too late, the garbage truck came, which leads Beaver to take drastic measures to get him back.

Wally jumps at the chance to paint a couple of garbage cans for Ward, who offers 50 cents a piece. However, once Eddie tells Wally, that his father was charged $3.00 to have his painted, he becomes disinterested in the job which is when Beaver steps in and takes over the job.

An incident at the park leads to Beaver ripping the pants on his gray flannel suit. When he's questioned by Ward and June he makes up a wild story that his parents quickly see through. Lectured in telling the truth, Beaver does just that when the pants of his other suit are ripped but Ward and June don't believe him.

An old friend of Wally's stops by with stories about how great it is at the military school he attends. This leads Wally to decide that he would like to attend military school, despite a wary Ward and June.

An animal is chewing up June's flower bed, so Ward and the boys set a trap to catch it. They soon catch a white rabbit whom Beaver talks Ward and June into keeping. Beaver names him Henry only to later discover Henry is really a Henrietta and she's expecting.

Larry gets Beaver into trouble when he goads Beaver into trying out Ward's drill and in the end there are two holes in the garage wall. Ward hits the roof and scolds Beaver who in turn decides to run away.

Beaver is all excited to have his friend, Larry Mondello, stay over for the weekend. However, things start off on the wrong foot when Beaver and Larry get into a fight ending with Beaver punching Larry in the stomach.

Beaver comes to Ward for help on the night before a poetry assignment is due. This prompts Ward to totally take over the project and writes the whole poem himself. Things get complicated when Beaver wins an award for the poem and Ward is faced with explaining the truth to Beaver's principal.

A school dance has Eddie swooning over his so-called girl, Caroline. However, it's obvious Eddie has made up their relationship when Wally and him visit her and she instantly becomes smitten with Wally.

Beaver makes a new friend in Chuey Varella but he only speaks Spanish. So Beaver asks Eddie, who has taken Spanish, for some help but Eddie plays a joke on Beaver by feeding him a sentence in Spanish which ultimately insults Chuey.

While watching Wally and his friends play baseball, Beaver is put in charge of looking after everyone's coats and watches. However, after the game is over Lumpy comes to claim his watch, but Beaver has no watch to give him.

When Eddie and some of his other friends brag about shaving, Wally decides it's time he try. After nicking his face, Ward tries to discourage him but this just leads Wally to continue to shave. When Ward catches him again, he scolds him right in front of Eddie which leads to Wally being made fun of.

Wally needs a new suit for an upcoming dance and he convinces his parents that he's old enough to pick out his own clothes. So he and Beaver go down to the shop and pick out the loudest, cheapest plaid suit in the entire shop.

A school play has Beaver assigned the role of a canary. However, he doesn't seem to be graceful enough to fly around like a bird. To make matters worse, on the night of the play, Ward's words of encouragement lead to Beaver coming down with a case of stage fright.

Ward takes June and the boys away on a trip to a cabin in hopes of experiencing the "great outdoors." However, he quickly discovers getting away from today's modern conveniences will be more difficult than he anticipated.

Wally, Chester and Tooey are building their own boat and plan to sail on it, despite Ward and June's forbidding Wally. Once at the lake, Beaver is the only one small enough to get in it and once on the water, the boat tips over, leaving a soaked Beaver behind. However, it's trying to keep their afternoon of boating a secret from Ward and June that's really going to wipe Wally and Beaver out.

A lazy weekend leads Ward to direct Wally and Beaver to read a book, Tom Sawyer. The book influences them so much that they take on the job of painting the garage doors. However, they soon find the job to be awfully boring and messy. Chaos erupts when neighbor Benjie Bellamy stops by wanting to help.

When the new girl, Gloria, tells Wally that he has a pug nose, he becomes incredibly self-conscious and purchases a contraption that is suppose to give him a strong Roman nose. When Ward discovers the device, he gives him a pep talk which just makes matters worse.

Beaver, Larry, and Whitey begin a pigeon club and they each purchase pigeons of their own. Beaver names his two Miss Canfield and Miss Landers, after his two teachers. However, when Beaver comes down with chicken pox, Wally is forced into caring for them, but soon finds Beaver isn't the only one ill - Miss Canfield and Miss Landers are also ailing.

Wally wins a trophy at school and Beaver accidentally breaks it. This leads Ward to accuse Beaver of being jealous of Wally and that he broke it on purpose. Upset, Beaver decides to get new parents and heads to an adoption agency.

Beaver and Larry become convinced that the Cooper house is haunted by a witch and Beaver and Larry are scared to death. So when June gets Beaver a job walking Mrs. Cooper's dog, Beaver's fear gets the best of him.

June and Ward allow Wally to escort Beaver on a bus to a friends house in Crystal Falls. However, on one of the stops, Beaver inadvertently gets on the wrong bus that takes him back to Mayfield.

While staying after school cleaning the chalkboards, Larry convinces Beaver that Mrs. Rayburn keeps a spanking machine in the closest in her office. Later, a curious Beaver sneaks a peek but soon finds himself locked in the principal's office. Beaver's fame doesn't go over well with his family but Beaver has another problem on his hands: he's just gotten his head stuck in an iron fence at the park.

Beaver and Wally get jobs at the circus cleaning the animals and a promise to each be payed $10.00 at the end of the week. However, when the end of the week comes and there is no payment in sight, Beaver and Wally instead become the proud owners of a horse named Nicholas, and they hide him in the garage.

Beaver discovers that Ward was in WWII and brags to his classmates that Ward was a war hero. As usual, his classmates don't believe him and Beaver promises to bring in some mementos to prove it. At home, Beaver discovers that Ward was an engineer in the war and didn't actually fight in combat, leaving Beaver to take drastic measures so as not to look like a fool in front of his classmates.

Ward makes an offer on a house located in a neighboring town and Beaver believes moving is going to be a sure thing. This leads him to tell all his classmates that he's moving, leading his classmates to throw him a goodbye party and give him going away presents. When the deal falls through, Beaver must tell his class that he won't be moving after all.

While cleaning in the garage, Beaver and Wally come across an old typewriter. Beaver decides to fix it up and begin his own newspaper with Larry. However, Wally stands in his way by claiming the typewriter is his property.

Beaver spends the weekend at Larry's, but the first night there they get into a terrible argument and Beaver goes home angry. After Ward tells Beaver a story about Damon and Pythias, Beaver and Larry swear to die for each other. Larry then promptly demands that Beaver give him his homework to prove himself.

Wally gets an invitation to attend a cotillion with Mary Ellen Rogers. At first he wants to turn down the invitation, but then decides to go anyway, despite the fact that Mary Ellen has signed them up to do the cha-cha in a dance contest.

Wally begins combing his hair a new way, inspired by a fad started by Eddie that has swept his school. However, June and Ward are aghast at his hairdo and June becomes determined to get Wally to change his hairdo back to his normal style.

Beaver and Larry have been put in charge of the class cookie fund and are taking turns guarding the money. A new kid takes advantage of them and cons Beaver and Larry out of three dollars from the fund.

An old friend of Beaver's, David Manning, invites him to a birthday party and Beaver promises to attend, but as the week passes, Beaver forgets all about it. When the day arrives, June, Ward and Wally scramble to find the Beaver who is spending the day wandering around town with Larry.

After getting a poor grade in gym class on his report card, Beaver becomes determined to prove to everyone that he is a good athlete, so he signs up to play baseball where it's the boys versus the girls.

Miss Landers assigns Beaver's class to write a short essay about the most interesting character they know. While Judy writes about her dad, Beaver debates over whom he should write about. Beaver finally decides to write about Ward, but Beaver isn't sure if Ward is interesting enough.

Wally becomes the chairman of the blind date committee for an upcoming dance. However, Wally quickly wants to resign from the position when he can't find anyone to go with the new girl, Jill Bartlett.

Ward and June allow Wally to babysit Beaver one evening, while they attend a party. However, things go awry when Beaver gets ready to take a bath he accidentally lets the bathtub overflow causing the water to leak onto the bathroom floor and into the downstairs ceiling.

A new school year has the bus service being extended to those students living in town. However, after not even a week, Beaver gets suspended from riding the bus after getting into a fight.

After leaving the cap off the ink, Beaver is grounded to the house for a whole day after the ink ruined some of Ward's papers. However, Larry and Beaver sneak out to the movies and when Beaver wins a bike, he must find a way to keep it a secret from his parents.

Beaver's class holds a ""Most Beautiful Baby"" contest and each student is supposed to bring in a baby picture. To make the deadline, June picks out a cute picture of Beaver at the last minute and sends it to Miss Landers, not realizing that the cute picture may cause Beaver embarrassment.

Ward saves an old pedometer from being thrown out and gives it to Beaver, but not before telling him a story about when he was a kid he would walk 20 miles a day. Taking the story literally, Beaver makes a bet with Whitey that he too can walk 20 miles in a day.

Larry and Beaver spend the day at lake which is where they encounter two kids who let them borrow their boat. However, little do Larry and Beaver know that the boat is stolen.

Ward loans Beaver 25 cents but gives him a dollar, expecting 75 cents as change. However, Larry manages to convince Beaver to loan him the 75 cents and when Larry doesn't pay him back, when he said he was going to, a feud erupts.

Beaver buys a common magic trick but is disappointed by everyone's ""that's nice"" reaction, but he gets a totally different reaction out of Bengie when Larry and Beaver convince him that Beaver has been turned into a rock.

June's birthday has Wally and Beaver fighting over what to buy with the five dollars that Ward gave them. Wally buys her a wallet while Beaver buys an ugly blouse that June kindly thanks him for, but she has a hard time bringing herself to wear it.

Beaver wants to raise chinchillas and begins building a cage in the garage. However, when Beaver changes his mind, Ward tries his best to get Wally and Beaver the clean the mess up in the garage. Things get worse, when Ward unknowingly runs over some of the wood and nails that Beaver left laying around with the car, causing the boys to try to patch a flat tire before Ward finds out.

While Beaver is staying at the Mondellos, Larry sneaks a peak at his sister's diary and his mother discovers him and yells at him right in front of Beaver. This prompts Larry to run away, to Beaver's house, who secretly hides him in his bathroom.

An upcoming test in history, Wally's weakest subject, has Wally studying all weekend and has Larry and Eddie coming up with a plan that will give them good grades on the test.

Ward allows Beaver to check out a book on his library card but when Beaver loses the book he becomes convinced that Ward will be put in jail, thanks to Eddie Haskell's wiseguy comments.

Eddie nominates Wally for class president and Wally has no interest in the position, that is until Ward gives him some encouragement. Wally quickly gets wrapped up in the election and his friends see a change in him, a change that prompts them to vote against him.

An old acquaintance of Ward's stops by and offers to paint the trim on the house. However, June and Ward are both apprehensive about the prospect of an alcoholic coming in contact with Wally and Beaver, despite the fact that he says he's cleaned himself up.

Both Beaver and Larry are forced into attending dancing school by their parents and after one lesson, they find that they absolutly detest it, like they knew they would. This prompts them to skip class next time and they hide out behind a barn until it's time to go home.

Larry is furious when Beaver leaves him out when he joins a club called the Bloody Five. To get revenge, Larry makes up a story that he is starting his own club and that people are waiting in line to join. This prompts Beaver to resign from the Bloody Five and he tries to join Larry's bogus club.

Wally lends his school sweater to Frances and quickly finds getting it back is going to be difficult since the girl keeps making up excuses. Things reach a boiling point when Ward and June overhear Frances bragging to her friends how Wally is chasing after her.

After seeing someone being hypnotized in a movie, Beaver sets out to do the same but Eddie wants to play a trick on Beaver and pretends Beaver has hypnotized him and Beaver gets scared when Eddie doesn't snap out of the trance.

After drawing Alma's name for a school picnic, Wally finds himself meeting her parents and her mother takes an immediate like to Wally and begins setting him and Alma up on numerous dates then turns around and accuses Wally of monopolizing Alma's time.

Beaver asks his parents if he could ride his new bike to school instead of ride the bus, and after some hesitating they finally agree to it. However, on the first day, a naive Beaver gets his bike stolen.

Wally asks out a rich girl who drops hints that she would like an orchid for her corsage. Wally quickly discovers that getting one is going to be more difficult then he originally thought.

Ward's cherished autographed baseball becomes the object that Larry and Beaver just can't keep their hand off of. They decide to play catch with it and it ends up getting run over by a truck.

Beaver and Larry find a wallet that contains $89 while on their way to the grocery store to pick up some groceries for June. Surprisingly, Beaver and Larry decide to turn it in at the police station and Beaver finds himself waiting an agonizing week to see if he can keep the money.

Beaver must write a composition about his mother but soon finds himself the only one with a seemingly ""boring"" mother while Richard, Larry and Judy have colorful mothers. Beaver decides to make his mother colorful too even if it means making up things.

Beaver finds himself in a most uncomfortable situation when Fred Rutherford practically plays matchmaker and pairs Beaver up with his daughter Violet. Fred organizes a picnic and invites the Cleavers which is where the situation culminates into Beaver getting kissed by Violet.

For an upcoming dance, Wally is ready to wear a grey suit but when Beaver brings his new friend Richard over to the house, he accidentally spills oil on it, leaving a big stain. This leads Richard and Beaver to try to bleach the stain out with disastrous results. Beaver finds himself with another problem, when later, Eddie discovers what Beaver is hiding from Wally.

Beaver sends his picture in to a modeling agency and they reply with a letter stating they will place his photo in a modeling directory. Soon after Beaver recieves another letter this time asking for $30 and when Beaver ignores it, the company threatens legal action.

Wally gets a job selling Igloo ice cream and quickly finds himself giving credit to everyone, including Eddie. However, as the day approaches that his money is to be collected, Wally scrambles to get those who owe him money, to pay up.

Assigned to read one more book before the end of the school year, Ward suggests Ivanhoe, and Beaver reads it and takes the ideas of knighthood and chivalry to heart. He begins defending girls and begins charging his friends to make them knights.

Wally has joined an all male club at school and learns that they are putting on a play and he's not too happy when he learns that the part he's supposed to play is that of a chorus girl. Later, Beaver and Gilbert make matters worse when they stumble upon Wally's costume, a dress.

The last day of school has each one of Miss Landers' students bringing her a gift. June orders some nice hankerchiefs for for the gift and a slip for herself. Beaver mistakes the slip as the gift for Miss Landers' and debates on whether or not to give her this very ""personal"" gift.

While coaching Beaver's football team, Wally makes up a secret play and Beaver just happens to mention it to Penny who inadvertently passes it on to the opposing team.

Beaver is determined not to eat brussels sprouts and adamently refuses not to eat them when June serves them for dinner. In order to go to a football game, Ward makes Beaver promise that he will eat them the next time they are served. Beaver quickly finds himself confronted with the ""deadly"" vegetables when the Cleavers go out to eat at a posh restaurant.

A friend Beaver made at summer camp, Chopper, stays with the Cleavers for the weekend. Beaver is quickly introduced to Chopper's unusual life since he is the son of parents who have been married and divorced many times.

While Beaver and Wally are fishing an abandoned canoe floats up and Beaver and Wally responsibly return it to the owner, whose name had been carved in the paddle. However, after telling his friends the story, they adjust it to make it sound as if Beaver had saved a girl from drowning.

When Clarence gets fed up with Beaver calling him Lumpy, he gives Beaver a new nickname of Freckles. This leads Beaver to become self-concious about his freckles and takes steps to try to remove them.

Constantly entering contests, Beaver's latest one has him selling raffle tickets in hopes of winning one of the prizes. Surprisingly, he does indeed win third prize and the prize is a $3,500 sports car. However, his dreams are dashed when Eddie's premonition comes true, Ward breaks the news that Beaver can't keep the car.

While doing some yard work for Miss Landers, Beaver and Whitey witness their favorite teacher in the midst of a gentleman caller, which makes Beaver a bit jealous. However, Beaver gets sick to his stomach when he discovers Miss Landers is engaged to be married and the man he saw was her fiance.

Eddie crawls through the Cleaver house spreading the news that he's going steady with Caroline Schuster, something that worries June who doesn't want Wally to get any ideas about going steady. However, Wally has other worries when he overhears Caroline saying that she's only using Eddie while her boyfriend is grounded. Leaving Wally with the decision to tell Eddie or not.

Wally is shocked to learn that the glamourous Kitty Bannerman is visiting Mayfield and he's afraid that she will find out that he's not the rich hot shot that he told her he was in the letters that he had sent her.

A neighbor gives Wally the responsibility of taking her son, Chuckie, down to the shoe store to pick out a pair of shoes. However, when Wally gives the job to Beaver, Beaver finds himself searching for Chuckie, who has gotten himself lost.

While at a parent's meeting, June leans from Miss Landers that someone has been stealing in Beaver's class and so far, a baseball glove, a lunch box and a baseball cap were heisted. Later, June makes a shocking discovery, she finds the stolen items under Beaver's bed. This leaves June and Ward wondering if they're raising a thief.

An advertisement in the mail for a free tryout of an accordian has Beaver sneaking around behind Ward's back. After rescuing the flyer from the trash, Beaver sends it in and indeed gets an accordian that he quickly finds hard to hide from his parents.

Ward's Uncle Billy arrives in Mayfield for a visit and begins telling Wally and Beaver exaggerated stories. Not realizing this, Beaver expects Billy to come through after promising Beaver a fishing reel.

Wally's latest girlfriend is Julie Foster who just happens to be the daughter of a Mr. Foster who teaches English. Meanwhile, at school, a new semester lands Wally in Mr. Foster's class and quickly finds himself feeling uncomfortable. Especially after Eddie tells him that his relationship with Julie will determine his grades.

Wanting Ward to become a millionaire, Beaver buys him a book called, ""I Became a Millionaire in Twelve Months."" Ward thanks him for it but Beaver quickly learns that Ward is just being polite as to spare his feelings.

After revealing that he wants to be a writer when he grows up, Ward buys Beaver a diary to practice writing and Beaver begins keeping a record of his daily activites. However, June and Ward pick the lock and sneak a peek at his diary after Beaver neglects to come home on time.

Wally is all set to compete in a track meet but after the coach catches him ""horsing around"" in the locker room, he's ousted from the meet, even though Lumpy and Eddie were egging him on.

An old friend of Beaver's spends the weekend at the Cleavers and Beaver is all ready to have a great time like they use to. However, Beaver quickly discovers that people change and in this case Beaver's old buddy has indeed changed.

When Beaver becomes sick, the doctor thinks Beaver may need to have his tonsils taken out. Ward quickly puts Beaver's fears to rest by telling him everyone will bring him presents when they visit him in the hospital. This leads Beaver to tell everyone that he's going to have surgery but then finds out he may not need the operation after all.

Eddie makes it known to everyone that he's just gotten a job down at Parker's Pet Store, which happens to be the store that's holding a contest where you guess how many fish are in the tank. After hours of counting and re-counting, Gilbert suggests to Beaver that they ought to just ask Eddie for the count, but Beaver is a bit hesitant at cheating.

Miss Landers is having Beaver's class do projects on the colonial period and Beaver is one of three people doing posters. Who ever makes the best one, gets a prize and Beaver is sure that Ward will paint the poster for him, but Ward rejects that idea and forces Beaver to do his own work.

A neighborhood cleaning woman, Mrs Manners, gets a request from June asking her to help out a couple times during the week. Mrs. Manners is too busy herself but instead sends over her daughter, a girl whom Wally instantly falls for.

After joining the dramatic club at school, Beaver is given the lead role in a play. However, after reading the script, Beaver discovers he must kiss a girl and wants out of the production.

Wally invites Eddie to spend the night. However, during a game of chess, Eddie accuses Wally of cheating and they get into a big argument ending with Wally ordering Eddie to go home.

Beaver gets out of school early to go to the dentist which prompts Gilbert to drop off his report card. However, Eddie and Lumpy get a hold of it and Eddie decides to alter Beaver's arithmetic grade from a D- to a B+.

A police officer catches Richard throwing rocks at the windows of an old abandoned house. When asked for his name, he tells the officer his name is Theodore Cleaver. Meanwhile, Ward has joined a committee to organize a youth center.

Wally falls head over heels for a popular girl in school, Ginny Townsend. To get them together, June slyly invites Ginny on a picnic and the Cleaver's quickly discover that Ginny is not exactly a barrel of laughs.

Beaver making trades with his classmates is beginning to get on Ward and June's nerves since he seems to be the one who always walks away shorthanded. June especially thinks Beaver got the short stick in his latest trade, when he comes home with a pet rat.

Beaver volunteers to go around the neighborhood and collect for the Community Chest in June's place after she decides to attend Wally's open house at his school. Beaver brings along Gilbert and thanks to Beaver's astronomical mistake of losing the collection can, chaos erupts.

Beaver decides to run for Junior Fire Chief and, to his surprise, wins. However, as soon as he's elected, Beaver lets the responsibilities go to his head and begins issuing citations to not only his family but his neighbors as well.

An upcoming father-son Kite Day has Beaver getting all excited when Ward agrees to participate with him. They do a great job building a kite together but when Gilbert talks Beaver into testing it out, the kite crashes and falls apart. This leaves Beaver with the duty to tell Ward just what happened to their entry in Kite Day.

Beaver buys a run down mini-race car from Eddie and needs to find a set of wheels for it. Beaver decides to ask Penny Woods if he could have the wheels off her old doll buggy but finds himself in an awkward position, pushing a doll buggy down the street.

Before leaving on a business trip, Ward asks Wally to look after June and Beaver and Wally does indeed. However, when Miss Landers hears Beaver swear at a bully, Beaver turns to Wally to handle the situation and be a ""substitute father.""

Ward and June find themselves in the dark when they hear through the grapevine that not only is Wally going steady with Evelyn Boothby but that wedding bells may be heard soon. Meanwhile, Wally gets a different picture of marital life through Evelyn's sister and her husband.

A strange cat appears at the Cleaver's door and Beaver takes it in and feeds it. However, when the owner is found, and the cat is returned, Beaver finds himself with a dilemma. The cat keeps coming back.

Wally and a bunch of other guys are invited to spend the weekend at Scott's cottage on the lake. However, the one thing that could keep Wally from going, Scott just happens to forget to mention, that there will be no parent supervision.

A party is being thrown at the dancing school where Beaver and Wally once took lessons and they're both invited. This prompts Beaver to ask one particular girl who caught his eye, Betsy Patterson, if he could escort her to the dance. However, once at the dance, he finds that Betsy has promised other boys that she would dance with them.

Ward allows his car to be driven by Lumpy who must get Eddie, Wally and Beaver to a sporting event in a neighboring town. However, on the way back, Lumpy disobeys Ward's orders and takes a shortcut home.

June and Ward have noticed the Wally has been spending quite a bit of his time at the movie theater but it's not to see the movies. He's been eying the pretty young lady who works in the box office. Thanks to Eddie, Wally works up enough courage to ask her out but quickly sees another side to the young lady that is a bit too mature for Wally's taste.

June and Ward go away for a couple of days and leave Uncle Billy to stay with Wally and Beaver. Beaver quickly realizes Billy runs a much looser ship than Ward and June and feels as if he can get away with more things. However, he's soon in for a rude awakening when he helps Gilbert sneak into the movies.

June and Ward are excited when they learn that Aunt Martha has made arrangements to send Beaver to a prep school in New England. However, Beaver quickly realizes he will miss his friends as they are all entering Mayfield High School next year. This puts Beaver in a delicate position, how to tell Aunt Martha he doesn't want to go without hurting her feelings.

Eddie has been seeing one particular girl, Cindy Andrews and she wants to give Eddie a birthday gift, so she decides to knit a sweater. She uses Wally as a model and he begins spending so much time at Cindy's that he arouses the suspicions of Julie, Eddie, Lumpy, Beaver and his parents.

A school dance has Beaver with a major dilemma: he has two girls who ask him to go with them. However, he has a little problem, he accepted the first invitation but now wants out of it when he's asked by the second girl. This leads him to take some of Eddie's poor advice.

Wally and Eddie fall prey to Lumpy's practical joking after he plants cherry bombs under the hoods of Eddie's car and Wally's car. Both Eddie and Wally want to get him back but their plan goes awry when they destroy Lumpy's car after chaining it to a tree. All fingers point to Wally after Fred finds that the chain has Ward's name printed on it.

Beaver has the chance to travel around the country for six weeks during the summer and he's all excited about it. However, he quickly realizes when he's gone Gilbert will go after the girl Beaver has a crush on, Mary Margaret. Fortunately, he quickly realizes there's more to life than Mary Margaret.

While cleaning, June runs across an old family scrapbook and gathers the family together to reminisce about the past six years. The Cleavers recall scenes from previous episodes including: Beaver Gets 'Spelled, New Neighbors, My Brother's Girl, The Shave, Beaver Runs Away, Larry Hides Out, Teacher Comes to Dinner, and Wally's Election.