When one of the members of Viv's female barbershop quartet drops out, Lucy convinces Viv and her friends to let her fill the vacant spot.

⁣After Lucy drives off the plumber with her meddling, she and Viv decide to finish installing the shower stall, with disastrous results.

⁣The elderly president of the bank, Mr. Heatherington, is in town for its 50th anniversary. Mooney's in charge of the banquet so is ordered to line up an appropriate date for the rich 80-year-old. With no time or ideas, he forces Lucy to masquerade as a little old lady and escort the millionaire to the dinner. Heatherington proves to be a lecherous old skirt chaser who can't keep his hands off of his senior citizen date.

⁣Lucy gets drunk on a French movie star's champagne. Guest starring Jacques Bergerac.

⁣Lucy fakes being sick to go shopping with Mary Jane at a one-day-only sale. Despite having destroyed a dish display and a refrigerator in the department store, Lucy is chosen customer of the year and wins a bunch of prizes. With a photo and story appearing in the next day's newspaper, Lucy works hard to keep Mr. Mooney from seeing it.

⁣ Lucy moonlights again--this time as Milton Berle's secretary. After overhearing Berle rehearse a torrid love scene with Ruta Lee, Lucy decides to teach the cad a lesson by "tossing his salad".

⁣Mr. Cheever warns Mr. Mooney that his job is in jeopardy unless he attracts new business to their branch of the bank. So when Lucy hears that a recording star, country hick Homer Higgins (Ernie Ford), is about to become a California resident, she sets off to the hotel to coax him into setting up an account with their bank. To impress Mr. Higgins and his family, Lucy and Mr. Mooney set up a hoe-down in the bank after it closes that evening...and Lucy decides to dress down to pose as Mrs. Mooney.

⁣Lucy helps a retired boxer earn enough money to purchase a flower shop.

⁣ Tired of hearing what a lousy employee she is, Lucy wants to prove to Mr. Mooney she could easily get another job. The employment agency tricks her into taking a high-paying babysitting gig. They don't bother to tell her she'll be taking care of three chimps whose "parents" treat them like little humans.

⁣Lucy spies on her substitute in various disguises.

⁣ Lucy is so overworked that Mary Jane warns her she'll have a nervous breakdown. Meanwhile, a performer from the bank's benefit show leaves his trained ape in Mr. Mooney's office. Lucy sees the simian, believes she's finally snapped, and is convinced that the hairy creature is actually Mooney.

⁣Lucy and Mooney appear in Pat Collins' hypnotist act.

⁣Mr. Mooney (Gale Gordon) sends Lucy to deliver some important papers to John Wayne. He’s currently shooting a western and, naturally, Lucy cannot help herself and ends up destroying the filming. Through it all, Duke is his charming self. Although a bit exasperated at the chaos the redhead brings to the set.

⁣Lucy receives a draft notice in the mail by mistake and ends up joining the USMC. Cameo by Jim Nabors as Gomer Pyle.

⁣An efficiency expert (Phil Silvers) makes the bank inefficient.

⁣Lucy calls in sick so she can join her roommate at a Palm Springs resort. Unfortunately, her boss, Mr. Mooney, is staying at the same hotel.

⁣After Lucy runs an ad to get a roommate in order to save money, she organizes a party to welcome her roommate.

⁣Lucy writes a jingle for a dog food company and wins a trip to London, England ("in Europe"). But when she misses her flight, she's forced to take a commuting flight to New York -- in a seat next to Mr. Mooney, who's on his way to the Big Apple for a business meeting

⁣ Mr. Mooney foolishly allows Lucy to try on a $6,000 anniversary ring he bought for his wife. When it becomes stuck on her finger, Lucy takes some tranquilizers to help her relax. The pills make her loopy, leaving Mooney to drag around a semi-conscious redhead while trying to un-stick the ring.

⁣Lucy gets Paul Winchell to perform at the bank's annual dinner.