After Ricky and Fred get upset about the girls' spending, Lucy and Ethel go to work in a candy factory while the boys do the housework.

Lucy doesn't want to be left home when Ricky goes on tour, so she tries to convince him that she is a talented saxophone player. When that doesn't work, she tries to make him so jealous that he won't leave her by herself.

For their anniversary, Ricky secretly tries to buy some pearls for Lucy through a neighbor lady who works at a jewelry store. Lucy finds out just enough to think there's something going on between them.

Lucy attaches herself to Ricky using old handcuffs from Fred. She doesn't know he never had a key for them.

The Ricardos and Mertzes perform in an operetta for a club benefit.

Lucy convinces Ethel that both of their marriages are in a rut. They decide to take some time away from their spouses. Lucy moves in with Ethel and Fred moves in with Ricky. By Saturday night they all get bored and both attempt to check the activity of the other pair at the same time. Lucy and Ethel almost get caught spying and end up getting locked on the roof in their night clothes.

The Ricardos buy the Mertzes a television set for their 25th wedding anniversary. When Ricky accidentally breaks it, Fred breaks the Ricardo's TV and both couples end up suing each other.

Lucy and Ethel are both sick of their furniture, so they enter a contest where the grand prize is five rooms of new furniture.

Ricky gets a sore throat just before a show for the new owner of the Tropicana.

When Lucy learns that she's going to have a baby, she tries to find the right way to tell this to Ricky.

Ricky does his best to deal with pregnant Lucy's emotional needs.

Pregnant Lucy insists on being in a barbershop quartet skit at the club with Ricky and the Mertzes.

Lucy is worried that their unborn child will someday ask a lot of difficult questions, so she hires a tutor to teach her, Ricky, and the Mertzes.

Ricky develops psychosomatic labor pains.

Lucy decides to explore her artistic side and takes up sculpting.

Lucy has her baby.

Lucy seems to be unable to resist buying junk from fast-talking salesmen.

Ricky and the Mertzes try to pull Lucy out of an emotional slump.

Lucy and Ethel run against each other for President of their women's club.

Ricky and the Mertzes recall when Ricky accidentally gave Lucy a black eye.

When Ricky gets upset about Lucy constantly changing her mind and never finishing anything, he tells her she has to finished everything she starts. When she finds an old, incomplete love letter to a former boyfriend, she decides to finish it.

Lucy has a difficult night with Little Ricky crying constantly. A neighbor, Mrs Trumbull complains and says the lease does not allow children. Ethel says the lease does not matter because the Ricardos can stay.

When Lucy needs to help with the baby and housekeeping, but she hires a maid who turns out to be more than a little domineering.

Ricky plans a Native American show at the club and needs to find a few Native Americans. Lucy, Fred and Ethel want to be part of it. Ricky hires Fred and Ethel but not Lucy, so Lucy has to resort to trickery to be its inclusion.

Lucy is depressed when she thinks everyone forgot her birthday and wanders off while her surprise party waits at the club.

Lucy tries everything to convince Ricky to let them move to a bigger apartment.

Lucy and Ethel play matchmaker for one of Fred's friends who is visiting from out of town, but things get complicated.

Ricky insists that Lucy use her allowance to pay for new furniture she bought without his approval.

Lucy and Ethel want to go with Ricky and Fred on their camping trip.

The girls get fed up with the boys watching the fights on television. They try to do something to distract them and end up getting arrested.

The Ricardos sell their old washing machine to the Mertzes after they buy a new one. It's the Ricardos vs. the Mertzes when it breaks down before the Mertzes pay for it.