My Three Sons

After Robbie decides he will tell Katie that he wants to stop exclusively seeing her, he ends up proposing marriage instead. He then enlists Steve's help to let her down easy.

As Robbie (Don Grady) and Katie (Tina Cole) get ready for their upcoming wedding, Katie's family and sorority sisters are skeptical over whether Robbie is the right guy for Katie.

It's the night before Robbie (Don Grady) and Katie's (Tina Cole) wedding and, everything that can go wrong, does. First, Tramp runs away and can't be found. Next, the dressmaker sends the wrong gown and bridesmaids dresses to the Douglass house.

The Douglas clan oversleeps on Robbie and Katie's wedding day and chaos reigns as they get ready. Robbie's best man falls ill and Chip is recruited to take his place. Tramp is missing and arrives at the church just in time for the ceremony.

Robbie and Katie return from their honeymoon and everything seems to go wrong for Katie as the Douglas clan adjusts to the fact that their all-male household is no longer all-male.

Katie learns that Robbie is buying her a gift for their "anniversary". She gets a waitress job to earn money to buy a gift for Robbie. Katie has to fill in for the cigarette girl the same day that Robbie's friend wins a free lunch at the restaurant.

Ernie's new playmate, Mike, likes to pull childish pranks that upset the Douglas family. Robbie goes to talk to Mike's parents only to learn that Mike doesn't have a mother, and that Mike is actually a girl named Michelle!

Attractive engineer Eileen Talbot is assigned to help Steve on a rush project and she applies her many talents to assure romantic, as well as technical success. Only Katie recognizes her as a manipulating female, long before the gullible Douglases do.

Ernie has innocently traded trinkets with two girls, and now both assume that he will be taking her to the upcoming dance. Ernie doesn't want to go to the dance at all but each of the girl's parents insist that he take their daughter to the dance.

While Steve is away on a business trip and the guys are out at a sporting event, Katie is awoken by a storm and hears an eerie, heart-beat sound. She phones Steve in a panic. The gang returns and are also spooked but can't figure it out.

Chip's class uses a computer to match kids for dates, with kids from another school, for the upcoming "computer picnic". Chip is excited about his date - until he meets her and discovers that she's about a foot taller than he is.

Katie's snooty Aunt Cecile visits the Douglas home and clearly doesn't fit in - trying to make everyone act more refined and calling them by their given names. Luckily for Steve, he's headed out of town on a business trip.

With Katie now living with the Douglases, everyone finds that they are getting in each other's way more often. Rob and Katie take the opportunity to move into a friend's apartment while they are away, but soon find that they miss what they had at home.

Chip is nervous about his upcoming driving test, so Katie asks Rob to teach her to drive so that she and Chip will be learning together. Katie has difficulties learning from Rob, and Chip wants to drive like a maniac while Steve is teaching him.

After discovering that a neighbor has a cousin, visiting from Liverpool, who plays guitar, Chip invites the cousin to join his band, only to discover that he has a much more laid back, folk style than Chip assumed.

Robbie and Katie serve as chaperones for a group of high school students, including Chip, on a trip. Robbie manages to foil every plan they come up with to sneak away, including removing the car's rotor from inside the distributor so it won't start.

Katie becomes a tutor to earn some extra money and is surprised to learn that her first student is a handsome ex-boyfriend of hers. Robbie doesn't mind at first, until he learns that the pair took a break from studying without his knowledge.

Katie complains that Uncle Charley is making her feel unnecessary in the Douglas home. Steve speaks to Charley, who tries to makes amends by planning a rather bizarre "tea party" on Katie's behalf.

Ernie becomes convinced he's a jinx when things inexplicably start to go wrong whenever he's around, but Steve reassures him that his family loves him anyhow

Ernie meets Zsa Zsa Gabor after accidentally falling into her swimming pool. She befriends Ernie, who introduces her to the rest of the Douglas clan.

Uncle Charley buys an 11-year-old trotting horse, thinking of the potential purses that the horse could win. The horse wins his qualifying race, but he discovers his horse's opponents were run-down nags not qualified for competitive racing.

Robbie reports to camp for two weeks of military reserve maneuvers, and Katie decides to go along and stay at a nearby motel so that the newlyweds can be near each other. Meanwhile, Uncle Charley and the boys are camping at Yosemite.

Steve is on a business trip to Amsterdam, Robbie is in the South Pacific for military reserve training and Chip is on a school trip to Mexico so Ernie and Uncle Charley are home alone together. Charley invites an old shipmate for dinner.

The Wong family from Bryant Park drops in on the Douglases unexpectedly while on their way to Hong Kong. Since the hour is late, Steve invites the Wongs to stay overnight, forcing him to cancel the family camping trip planned for early the next morning.

Rob and Katie invite a married couple, Larry and Denise, to visit. Denise, a psychology student, insists each person tell the others what they dislike about them. Rob and Katie are uncomfortable with this and things take a surprising turn.