Mr. Peepers gives the official commencement speech at the junior high school graduation exercises. He also asks for a raise in salary, in view of the coming baby. When the Superintendent of schools refuses the raise, Mr. Peepers considers applying for employment at a nearby military academy.

Mary McCarty and Mae Barnes help Mr. Peepers enact "The Life Story of Wally Cox".

When a new ballet teacher is hired at Jefferson City Junior High School, all are shocked to learn that after school hours she dances at a roadside cabaret. Mr. Peepers goes to investigate

Mr. Peepers and Wes hear that Elaine Stritch is playing at a nearby theater, so they attend, hoping to convince her to appear at their parent-teachers meeting.

Harvey Weskit borrows a cabin cruiser from a friend of his wealthy father-in-law, and invites the Peepers to join him and Marge on a cruise. Wes is self-appointed captain, but his piloting leaves something to be desired.

Harvey Weskit returns from a visit to his in-laws with a large gift of money, which he hopes will buy him membership in an exclusive country club. Mr. Peepers knows the club president, and arranges a golf date between him and Wes. Meanwhile, Mr. Peepers takes a gardening job at the club in order to earn extra money, but this threatens Wes' chances of being admitted as a member.

A surprise party is arranged for Nancy Peepers who is leaving Jefferson City Junior high school to await the arrival of the stork.

Mr. Peepers and his father-in-law Pa Remington decide to spend a day fishing, but they're after no ordinary catch. For fifteen years, Pa has been trying to hook a large trout, unofficially known as "Old Colonel." He thinks the assistance of his scientifically-minded son-in-law may do the trick this time.

Mr. Peepers take out on his motorcycle in search of a flighty canary and breaks up a sedate woman's club meeting.

Aunt Lil is so thrilled to hear she will be a great-aunt that she takes some time off to visit Jefferson City and offer her congratulations. When there, she decides to stay a few days, and has Mrs. Gurney call her boss to say she's ill.

Robinson Peepers' in-laws, Ma and Pa Remington, return from an out-of-town trip to learn that they are to be grandparents.

To celebrate Mr. Peepers' birthday, Wes decides to bake him a cake. Meanwhile, Nancy and Marge make a secret trip to the doctor and confirm their suspicions: Nancy is going to have a baby.

Mr. Peepers returns from England and is met by Nancy and the Weskits. But a financial crisis arises as they live it up at a fancy restaurant.

Mr. Peepers is in England to hear his uncle's will read. He's most interested in getting his uncle's insect collection.

Mr. Peepers and his new friend Peter Rhodes-Downing arrive in England. To compare English customs with those in the United States, Robinson visits an English junior high school, then takes a sight-seeing tour of London.

Robinson Peepers and his new-found friend, Peter Rhodes-Downing try to elude the purser in an effort to see the first class quarters.

Mr. Peepers' inheritance becomes a legal fact and he prepares for his journey to England to collect the money. After frantic last-minute preparations, he boards the boat, only to find himself as cabin mate to an elegant British aristocrat, Peter Rhodes-Downing. Downing holds him in complete contempt until he finds out that Mr. Peepers is to collect some money; then his attitude changes quite quickly.

A law firm representative informs Mr. Peepers that he may be the heir to the estate of a deceased English great-aunt.

A skiing safari is in the air for Mr. Peepers and his friends, but it doesn't quite work out as planned.

Mr. Peepers agrees to play Santa Claus to his neighbors' children; Harvey Weskit has a similar plan in mind, as do other parents in the neighborhood. The problem arises when there is only one Santa Claus suit in town.

An attractive substitute teacher (Inger Stevens) arrives at Jefferson City Junior High School to replace Mrs. Gurney while she is attending a teacher's convention in California. Mr. Peepers and Harvey Weskit are more than helpful to her, leading to all kinds of rumors.

Mr. Peepers and his wife Nancy have their first marital spat. Robinson invites his beloved Aunt Lil home to dinner without warning Nancy; then Aunt Lil invites a friend of hers, to Nancy's increased consternation.

Mrs. Gurney is appointed to represent Jefferson Jr. High at a teachers' convention in California, but can't decide whether to take the trip.

The County Supervisor of Schools visits Jefferson Jr. High for an annual inspection. Wes agonizes over whether he should apologize after the Supervisor takes exception to his suggestion that Christopher Columbus did not discover America.

In order to stop a group of children from playing pranks out of boredom, Mister Peepers invites them in for a Halloween story, which includes a bad knight (Wes), a wicked witch brewing practical jokes (Mrs. Gurney), a queen (Marge), the queen's younger sister (Nancy), and the queen's best knight (Mr. Peepers).

Marge and Nancy are mighty proud the day that Wes and Robinson receive bids from the Grand Lodge of the Lancers of the Southern Star. The Ancient and venerable Mister Remington is among the ancient and venerable lodge.

When Mrs. Gurney and the Weskits discover the inadequacies of the Peepers' makeshift furniture, they plan a "furniture party" for Robinson and Nancy. It is Mrs. Gurney's duty to see that the Peepers remain at home that evening, but when they go off to the movies instead, it becomes Wes' job to go retrieve them.

Robinson and Nancy have finally saved enough money to purchase a household appliance they want, but Nancy's father points out how vitally important it is for Robinson to carry life insurance. Peepers' cousin Luther, an insurance man, sells them a policy and the initial premium payment depletes the savings which had been put away for the appliance.

Mr. Peepers' sister Agnes arrives with a young scientist colleague from Chicago to view an eclipse of the sun which can only be fully observed in Jefferson City. Mom Peepers phones her son, asking him to carefully appraise Agnes' boyfriend, since she is not sure that he is right for Agnes. Peepers tries to watch both the boyfriend and the eclipse together.

The first show of the new series has Peepers and Nancy returning from their honeymoon summer to Jefferson City where he is the high school biology instructor. There is the problem of getting into the upper floor apartment they have rented in the home of Mrs. Gurney.