Gillis gets a telegram from out of the blue and is secretive about its contents. Riley speculates wildly that his friend came into money and gets mad at Jim for being so mysterious.
Don wants to go fishing with his buddies and Babs gets upset that her new husband wants to spend time away from her. Despite being warned, Riley gets involved in the newlywed's marital troubles.
When Gillis receives a telegram, Riley thinks his friend has come into a large amount of money.
Deciding that they are seeing too much of each other, Riley and Gillis search for new friends.
Riley worries about Junior becoming a delinquent when the lad says he wants to get a hot rod.
Peg goes out for the night and Riley's left alone to watch the fights on TV. Once the fight ends prematurely, he gets lonely and winds up at a lonely hearts Club.
Riley get to thinking that he could make it without working for the Aircraft Company and quits his job. Peg comes to the rescue.
With Babs expecting, Chester decides to become involved in planning day-care for his soon-to-be-grandchild. However, when he attends a "baby nursing course" that he thought would be for nurses, he discovers that it is instead a class for mothers. Complications ensue.
Riley and Gillis march in the Brooklyn Patriots of Los Angeles parade and get soaked when rains. Riley stays home in bed the following day to prevent catching pneumonia while Peg tends to Babs. When Peg takes Babs to the hospital for delivery, Riley rushes over in his pajamas and is mistaken for a loose patient. Babs delivers a healthy baby boy among all the chaos.
As a Father-Son Banquet nears, Riley feels bad for Gillis as they cannot afford to bring their son Egbert home from school. Rileys throws a barbecue to raise funds.
Honeybee's mother comes for a visit but because she can't climb stairs the mother-in-law stays in the Riley's home. Chester is soon exasperated by the difficult to please woman.
Riley continually brags about his new grandson to Gillis and everyone
Riley and Gillis enter a dance contest and Gillis wins a trip for four. Riley reminds Jim Gillis that the trip IS FOR 4 people, and of course, they were joking with Riley...they all go on a trip with Junior too.
The Rileys and Gillis' head to Hawaii on a vacation and get involved with a murder mystery.
Hawkins tells Riley and Gillis that he's no longer foreman, their old friend, Otto Schmidlap, is the new foreman. But the secret is, Otto is only temporary foreman while Hawkins is on vacation. Riley and Gillis devise a plan to make Otto look more capable so he will be made their full-time foreman, but the plan takes a wrong turn.
All hell breaks loose when Riley and his cronies decide to go on a midnight horse ride.
Zsa Zsa Gabor plays a voluptuous maid who disrupts the Riley and Gillis homes.
Junior brings home a goat for a ten day 4-H project. Chester finds himself tangling with the stubborn animal and trying to keep the goat from eating everything around.
Riley and Gillis mistakenly think that Junior has fallen in love with an older woman at a flower store.
Babs tells her Mom she and her husband have hired a famous architect to design their new home. Riley isn't convinced that the designer knows his business and soon the two men are butting heads over the project's blueprints.
Riley takes Gillis to a jewelry store to purchase a surprize gift for Gillis but his friend's advice proves to be no bargain.
Riley and Peg worry about Junior's future once he's done with high school. His friend Egbert already has plans for college and Riley and Gillis see Junior going into a pool hall.
The Gillis and Riley couples look forward to some relaxation after getting time off. They head to the beach where the boys look forward to getting in some fishing. With Chester involved, the time proves to be anything but stress free.
After a dispute, the Riley family is evicted. Chester convinces Gillis to be an obnoxious neighbor so his former home goes unrented. Chester's plan backfires as Jim and Honeybee become homeless also.
Riley tries to break into his old house to retrieve $3,000 worth of bonds he thinks he left behind in the fireplace brick.
Riley adopts a stray dog named Baskerville but the dog howls at night causing a disturbance. An angry and sleep-deprived Gillis counters with a rooster for a pet and now a petition is going around to force the two noisy families out of the neighborhood.
The Rileys and Gillises plan a camping trip together but then Riley receives an invite for his family to stay at a beach house.
Riley and Gillis ask for, then unexpectedly receive, raises so they convince Otto to do the same. Otto though is fired and his two buddies feel responsible, so they scheme to get Otto his job back.
Chester is afraid Junior is going to be unemployed for the summer, so dad puts a $50 deposit on a busboy job. Junior has a better paying position at a logging camp lined up, so Chester tries to get his money back.