My Three Sons - Season 5 (1964)

Bub wins the Irish sweepstakes, and uses his winnings to buy the family a trip to Ireland to see his relatives and enjoy the country.

Bub and the Douglas family continue to enjoy their time in Ireland.

Ernie & Chip have a Cub Scout adventure planned for the weekend, doing a moose patrol, which Steve is supposed to lead. However, Steve forgets, and brings home a business associate so they can work on a project together.

Steve is asked to escort a congresswoman when she is in town. For Chip, he is asked to be friends with a shy girl at school who is campaigning to be the class president. Chip is also campaigning to be the class president.

Chip and Ernie face a decision to choose honesty or 50 cents when other kids tell them how to steal school lunches. The ethical dilemma pervades the household, causing issues for everyone.

Jean Pearson returns to Bryant Park and reconnects with Mike. As they reminisce, Mike's feelings for her are rekindled so he can't bring himself to say he's engaged to Sally. Unaware that Jean doesn't know this, Robbie spills the beans.

Rob (Don Grady) gets an audition at a club and is given a job to play his guitar there some evenings. His girlfriend Sherry (Tina Cole) introduces him to her friends and Rob experiences a new lifestyle.

The owner of the Lotus Blossom restaurant is thinking of returning to Hong Kong. Steve enjoys eating at the restaurant so he tries to convince her to stay, telling her all the great things to do in America.

Robbie (Don Grady) is in love with another girl (Charla Doherty). He asks Sally (Meredith MacRae) for advice because he thinks the girl is older than he is.

A TV hypnotist picks Robbie from the studio audience as a subject, and the mesmerist's powers extend far beyond the studio. While watching the show at home, Bub succumbs too.

Mike meets Sally's father for the first time. The result? Total disaster.

Robbie has to go to the hospital after he is injured on the football field. His nurse (Danielle De Metz) is an attractive woman from France. She seems to be checking on Robbie constantly.

Mike & Sally's good friends are having marital problems. Mike & Sally begin to wonder if they are too young to get married themselves.

When Bub decides to fly to Ireland to visit his 104-year-old aunt, Steve says he can take care of the house while Bub is gone. Steve thinks women make it seem harder than it really is. Soon, Steve has to eat his words.

With Bub in Ireland and Steve unable to take care of the house and work also, he starts interviewing people for the job. Bub's brother Charley comes for a visit and ends up staying to help the family.

Charlie helps take care of a young Korean girl (Cherylene Lee), until her widowed father (John Lupton) can arrange for a permanent caretaker. The girl exhibits signs of PTSD after losing her mother during the war.

Robbie buys an old small airplane which has seen better days. He slowly repairs the plane and thinks he should be able to fly it soon. Steve steps in with some common sense.

Robbie's latest girlfriend takes him to the country club. When he gets home, he tells his father he should join the club because it is where the important people gather. Steve tells Robbie you do not have to be in a club to be important.

Steve (Fred MacMurray) is asked to modify a plane for a woman pilot (Dianne Foster), who wants to make a flight around the world.

The Douglas family plans a vacation to Hawaii, but Chip gets sick and the trip is canceled. Charley decides if they cannot go to Hawaii, then Hawaii shall come to the Douglas'. He plans a luau party in the backyard.

Robbie is head of the committee for decorating the school float for a parade. He comes up with an idea that seems scandalous. Chip has romance problems with someone (Susan Gordon) who is older than he.

Steve declines a business trip to Mexico because he does not want to be away from his family. This results in his Mexican host inviting the entire family to stay with him at his hacienda.

Charley runs into a friend (Gloria Swanson) from his vaudeville days on the stage. Since she looks great for her age, Charley thinks she might have found the fountain of youth. She tells Charley he just needs to enjoy his life.

A British scientist comes to the United States to meet with Steve and in the process, important blueprints begin to disappear.

Robbie serenades a race horse with his guitar so as to encourage the horse to do well in a race.

Chip decides to set up a trapper business so he can earn money just like his brothers and father.

Sally talks Mike into submitting their names for a computer love match program. She is upset when the computer does not match them together. Mike asks Steve to submit profiles for his parents who are sure to match each other.

There's a new dog in town, and it looks like Tramp. Prince is a pampered pet of a rich neighbor. The dogs get mixed up by the owners, and the families are bewildered by the personality changes of their pets.

A friend of Charley's from Australia visits and fills the boy's heads with visions of excitement and travel. But is the friend an honest man or a con artist?

Uncle Charley (William Demarest) takes Chip (Stanley Livingston) with him, when he attends a reunion dinner with his vaudevillian friends. Chip meets a girl (Angela Cartwright) there that he likes. When he loses one of his shoes, he feels like Cinderella at the ball.

Sally's mother arrives in town two months before the wedding in order to help with the final preparations. When she starts handing out assignments to everyone from a long list of chores, Mike starts to daydream about easier weddings.

Sally's (Meredith MacRae) cousin visits. Since Suzanne (Susan Seaforth Hayes) is attractive, she captures men's attention. Not wanting to be bothered, she and Uncle Charley (William Demarest) disguise her looks.

An Indian visits the Douglas family and says he is the last in line for his tribal family. He wants to visit the tribal burial ground which happens to be in the Douglas' backyard.