Betty, Koko, and Bimbo drive at the auto races; Betty has a cold, and her sneezes help her win.

In a circus tent, Betty, Bimbo and Koko demonstrate some gadgets reminiscent of TV ads; an animated sewing machine gets out of hand.

For customer Betty Boop, psychic reader Prof. Bimbo conjures up an adventure on a haunted tropical island in his crystal ball.

At Bimbo's Experimental Laboratory, Bimbo and Koko concoct a variety of compounds and elixirs. Their scientific experiments are interrupted when they see a bathing-suit clad Betty taking a shower on the roof of her penthouse. Distracted by Betty as she sings "Penthouse Serenade," the two fail to realize the chemicals they've mixed are still on the boil, one of which turns into a Frankenstein-style monster. The creature sees Betty, and crosses over the phone wire to menace Betty. Betty sprays the monster with flower spray, which turns him into a harmless dancing flower. Betty giggles and says, "You nutty dope fiend!"

A magic mirror, with a face resembling Cab Calloway, proclaims Betty Boop to be "the fairest in the land", much to the anger of the Queen. The Queen orders her guards Bimbo and Koko to behead Betty. With tears in their eyes, they take Betty into the forest and prepare to execute her. Betty escapes into a frozen river, which encloses her in a coffin of ice. This block slips downhill to the home of the seven dwarfs, who carry the frozen Betty into an enchanted cave. Meanwhile, Koko falls down a hole and arrives at the same cave, where the evil Queen turns him into a grotesque creature, all while singing the St James Infirmary Blues. With her rivals disposed of, the Queen again asks the magic mirror who the fairest in the land is, but the mirror explodes in a puff of magic smoke that returns Betty and Koko to their normal states and changes the Queen into a hideous monster. The queen monster chases the protagonists until Koko grabs its tongue and, with one mighty yank turns it inside out. Betty, Koko, and Bimbo dance around in a circle of victory as the film ends.

It's Betty's birthday, but she's in the kitchen washing dishes and wishing she had a man. Betty's pals, including Bimbo and Koko, throw her a party.

Betty responds to an ad for employment ("Girl Wanted--Top Floor--Female Preferred"), along with an enormous group of fellow applicants. When the interviewing manager asks Betty what she can do, Betty replies in song that she can't type or take dictation, but that she can provide other benefits. The businessman sends the other applicants away via a trap door, and hires Betty. Betty is happy with her new job, but the boss soon takes liberties with his employee. Scared, Betty calls for help. The police arrive on the scene, making several futile attempts to enter the building. They finally whittle down the skyscraper by firing machine guns into it. Betty and her boss appear in silhouette behind the window shade, but when the shade is raised, the two are locked in an embrace. Betty exclaims "Fresh!" and pulls the shade back down for some privacy.

An elephant punctures a rubber tree, whose spraying sap turns the whole town rubbery. Betty and the gang use their new found limberness to dance and sing.

Betty, while reading a book of Mother Goose stories, wishes she visit sucha a wonderful place. Betty's wish is granted when Mother Goose appears, and gives her a tour of Mother Goose Land. Betty has a wonderful time until Little Miss Muffet's spider chases her, with lecherous ends in mind.

While on shore leave, Popeye takes Olive Oyl to a carnival, where he is challenged by Bluto in various games. Later, while Popeye is dancing on stage with Betty Boop, Bluto seizes the opportunity to kidnap Olive, forcing Popeye to come to her rescue.

As the cartoon proper begins, a lion on roller skates (made of rabbits) rushes from his guard post atop a mountain, racing into a nearby village crying "Look out! The Old Man of the Mountain!" The lions warning sparks a mass exodus of the other animals who pack up their things and start to flee as the lion continues to warn "Look out! The Old Man of the Mountain!" In time, Betty Boop emerges from a guest house in order to find out what is going on. She confronts a passing owl, who in song describes the Old Man of the Mountain, a predatory hermit who threatens the livelihood of the villagers, particularly the women. Despite the owl's warnings, Betty is curious and declares, "well, I'm going to see that old man of the mountain", and starts a trek up the mountainside. She passes several people fleeing from the Old Man, including a woman pushing a carriage with her triplets--who look suspiciously like the Old Man of the Mountain. When Betty gets to the top of the mountain, the Old Man of the Mountain emerges from behind a rock. Over twice as tall as Betty, the Old Man backs the girl into his cave and, as Betty fights off his advances, begins to sing with her a duet of (Calloway's) "You've Got to Hi-De-Hi." Betty loosens up and joins in, and the two begin to flirt with each other. After his first verse, the Old Man looms menacingly over Betty. "Whatcha gonna do now?" Betty asks, frightened. "Gonna do the best I can," the Old Man replies, launching into a jazzy dance routine. The Old Man and Betty continue to dance together, but when the song is over, the Old Man makes a lustful grab for Betty, who runs for her life back down the mountainside. The Old Man makes chase, and grabs Betty just long enough to catch hold of her dress, which Betty jumps out of. As Betty finds refuge behind a large tree in her underwear, her dress comes to life and slaps the Old Man before running back to its owner. Betty climbs the tree to apparent safety, but as the Old Man comes

The miners at Never Mine go to Betty Boop's Tavern (a jazz-jumpin' place) for lunch; back in the mine, Bimbo delves into weird realms.

To the tune of Rubinoff and his orchestra, Betty Boop and feathered friends try to save a baby bird from the booze-swilling Tom Kats Club.

Betty Boop hosts a Halloween party with aid from a scarecrow, but an uninvited gorilla threatens havoc.

An action figure of Betty Boop drops in on a small toy shop; the other toys come to life and crown her their queen. But there's a big rag doll of King Kong... Based on the titular classical music.