Steve and Barbara plan a celebration for their first wedding anniversary. Dodie tells them she is also planning a party, but she does not tell anyone where it is at, or when it is being held. Chip meets Polly and begins to date her.
Chip and Polly decide to finally elope. Chip tells Steve their plans, and he tells Chip he should give Polly's father a courtesy visit before they go to a minister. Polly's father is not pleased and accesses Chip of wrong doing.
Chip and Holly are married, and on their way to Las Vegas for their honeymoon. They encounter car problems and hotel reservation problems, and have to spend their first married night in separate rooms.
Barbara volunteers to organize a fashion show for a woman's club. She convinces Steve to be one of the models for some of the men's clothing. When he finds out the shirt is lacy and ruffled, he wants to back out of the show.
For a psychology class assignment, Ernie tries a few experiments on his family members. He cuts Uncle Charley's cane a little bit at a time, and Charley thinks he is getting taller. However, Steve is not as easy to fool.
Robbie and Katie get a vacation in their own home when her mother takes the triplets with her to St Louis for a few weeks. Robbie & Katie make plans to do the many things they cannot do when the children are with them.
Robbie gets a visit from a former friend when he returns to town. His friend is full of exciting tales from traveling by motorcycle and seeing the sights. Robbie asks Katie if he can go on a trip with his friend for a few days.
Ernie and Elmore look forward to driving their girlfriends on a date after they pass their driving test and have licenses. However, the boys do not pass the test, and the girls do. Ernie & Elmore end up stranded at the end of the date.
Steve and Barbara go to San Francisco for a golf tournament, and Uncle Charley goes to a music festival, leaving Ernie in charge. He loses track of Dodie when she goes to town with a friend and has no money to get home.
Ernie agrees to babysit Dodie while Barbara goes shopping. Dodie asks if she can visit a friend, but when Barbara returns home, Ernie does not remember where Dodie went. Both Ernie and Dodie get put in time-out.
Charley looks forward to a visit from a couple of his former shipmates. Both of them could be depended on for rowdy entertainment. However, when his friends arrive, they are now mild-mannered gentlemen.
When Rob is laid off from his job, he and his family moves to San Francisco for a new job offer. Their new friends tell him he works too hard, and Katie starts to think it is because of her and the boys.