When an old lady comes in the employment agency looking for a job because she has nowhere to go, Lucy decides to let her stay at her house. When Mrs. Brady sells land to Harry, Kim tells them about a similar sounding scam which gives Lucy and Harry the idea to let the Mrs. Brady have a séance in which they dress up as Napoleon and Josephine to convince her to refund Harry his money.
Lucy has a new boyfriend Bob Collins, but Kim and Uncle Harry are worried. The milkman doesn't help matters when he informs the pair the Lucy's boyfriend is a playboy. Kim & Harry cook up all kinds of crazy stunts to scare off Bob.
Viv shows up for a surprise visit, and tells Lucy she may stay in California for a year, but everything goes awry when Harry fires Lucy and hires Viv in her place, making Lucy furious. After a few weeks, Harry can't stand Viv and Viv can't stand Harry. Lucy comes up with a scheme to get Viv to quit, but Kim blabs the whole thing to Viv.
Amazingly, Harry is lost without Lucille, and after 4 failed replacements moves the office to her house while she is recovering. Lucy then uses a variety of schemes to get him out. Harry ends up being arrested for operating a business in a residential area
Lucy is involved in a lawsuit when a young man is flattened by Lucy's wheelchair. A con man (Jesse White) seeks to get $100,000 from Lucy based on an injury lawsuit. Kim proves the guy is faking by offering him a job to sing and dance at a club.
Lucy & Harry organize a fund raiser for the Chamber of Commerce (which the mayor attends). The guest star is Phyllis Diller until she loses her voice. A resourceful Kim finds a replacement as the show must go on. Jim Bailey impersonates Phyllis Diller and does a great number (Fever) with Lucie Arnaz.
After cleaning her fireplace, Lucy takes a crate of apples down to her beauty parlor. She is mistaken for Dirty Gertie by a crook who enlists the homeless woman for good luck. Lucy is asked to go undercover to held apprehend the criminal. Lucy's gin (a la Vitameatavegamin) adds to a great drunk scene.
Lucy and Kim attend a Donny Osmond concert with cousin Patricia (Eve Plumb), who is crazy for the 14 year old singer. Donny, spots Kim in the audience, and he falls in love at first sight. Kim believes the flowers and letters are for Patricia, but soon discovers the mix-up. Realizing Donny volunteered to perform at Kim's Charity function because of the mix-up, Kim feels obligated to set the record straight.
A visiting Latin Prince falls for Lucy. Uncle Harry is promised a reward if Lucy agrees to marry the prince. Harry sees dollar signs and encourages her through various schemes to marry him. Lucy decides that she does not love the prince and so cannot get married.
In preparation for an audition, Kim's friend Annie get a makeover from Lucy and Kim. Unfortunately, the director wants a less attractive actress, much like Annie before the makeover. Nonetheless, all three get hired for a 1920's style speak easy sketch.
Mary Jane suggests Lucy and Harry go to group therapy to improve their working relationship. Once in therapy, the psychiatrist suggest the two reverse roles to see how the other one feels. Lucy takes charge and lands the agency a big account.