The doltish but self-confident and self-congratulatory Private Snafu is in possession of a military secret during World War II. Over the course of the day, spouting rhymed couplets, he divulges the secret a little at a time to listening Axis spies. He tells his mom some of the secret when he calls her from a phone booth; the rest he spills to a dolly dolly spy who plies him with liquor. Snafu's loose lips put himself at risk.
Big Bad Wolf and his nephew create a club for rabbits, Club del Conejo, to try to catch Bugs Bunny.
Mickey, Minnie, Horace Horsecollar, and Clarabelle Cow go on a musical wagon ride until Peg-Leg Pete tries to run them off the road.
Mickey is driving a taxi. His first fare is a very large gentleman. Mickey stops traffic and gets a tongue-lashing from the officer. The cab runs into some bad road, bounces the fare down to almost nothing, then bounces the customer right out of the cab. Mickey pulls up to the curb and picks up his second passenger, Minnie. She plays her accordion while they ride. The cab gets a flat tire, and Mickey uses a pig to pump it up.
Mickey runs radio station ICU from his barn. His friends play various musical numbers. A cat wanders in and starts yowling (which sets Pluto, who was listing from his doghouse, off). Mickey puts it out, but it, and several kittens, keep coming back in, playing with the equipment, running through the musicians (chased by a broom-wielding Mickey, who does a great deal of damage himself), and generally making a mess of things.
A fun day at the beach. While Mickey, Horace, and Clarabelle go swimming, or try to, Minnie lays out a picnic. Pluto discovers why you shouldn't chase a crab. Everyone digs in to lunch. Mickey throws Pluto a string of sausages; he dives after them, and comes up with an angry octopus instead, who crashes into the picnic. Everyone fights the octopus, and Mickey finally manages to send it out to sea by throwing an anchor like a lasso.
Mickey plays a bluesy tune on a piano on a stage. Minnie sings. Then an unseen band plays while both sing and dance. Mickey then leads the 9-piece band in an uptempo number, with Pluto on trombone, Horace on percussion, and Clarabelle on bass, among others. Mickey steps out for a clarinet solo.
Mickey takes Pluto fishing in a boat on a lake, but they aren't too successful. The fish mock them, and even steal the bait can. Finally, the game warden spots them (Mickey had ignored the "no fishing" sign) and gives chase.
Mickey's film is having a premiere, and all the stars turn out at the Chinese Theatre. Among those shown: Laurel and Hardy, the Marx Brothers, Jimmy Durante, Clark Gable, Sid Grauman, Mae West. The picture, Galloping Romance (Pegleg Pete kidnaps Minnie, and Mickey gives chase on a variety of animals), starts, and everyone in the audience sways along to the music, then rolls in the aisles with laughter. After, everyone comes on stage to congratulate Mickey; Garbo smothers him with kisses.
Mickey's a shovel operator and laborer at a construction site; Minnie is delivering box lunches; Pete is the foreman. Mickey pays more attention to Minnie than to his work, and keeps having accidents (mostly involving the blueprints Pete is holding). Pete steals Mickey's lunch, so Minnie offers him one on the house. While he's eating, Pete kidnaps Minnie; Mickey fights him, but the tide turns when Minnie dumps a load of hot rivets into Pete's pants...
Oswald the Rabbit comes to the rescue when a peg-legged sheik abducts his girlfriend and brings her to a mysterious pyramid filled with walking skeletons, animate hieroglyphics and other strange sights.
Blackout gags and music, including the title song originated in the movie musical Gold Diggers of 1933. Hollywood figures caricatured include Tallulah Bankhead, Joan Blondell, James Cagney, Bing Crosby, Guy Kibbee, Zasu Pitts, Mae West, Bert Wheeler and Bob Woolsey, Ed Wynn, George Bernard Shaw, Mussolini, Ben Bernie, The Boswell Sisters and Greta Garbo, who does the "Dat's all, folks!".
Betty Boop hosts a Hallowe'en party with a few uninvited guests.
Delivery boy Mickey encounters Minnie washing clothes and singing. He stops for a quick song and dance with her. Meanwhile, Pluto gets tangled up in tar. Mickey sends a beehive flying; it lands on his mule, who kicks Mickey's instrument-filled wagon into the air. He plays a march or two on the piano with Minnie, with many animals playing along.
A driver on a non-stop race from New York to San Francisco gets detoured to Hollywood, where he winds up working as a publicity man for a movie studio and assigned to revive the career of a beautiful but fading star.
Mickey heads over to see Minnie, but Pluto won't leave him alone. He gets there and watches through the window, standing on Pluto, while Minnie plays piano. Pluto runs off to chase a cat and leaves Mickey stuck in the window. Minnie has him in, and he dances to her playing. Pluto chases the cat into the house and causes havoc. The chase leads into the piano, where Pluto picks up the player-piano roll as an extended tail, and the destruction continues.
A greedy man tries to get rid of his mother by putting her in an old folks home until he discovers she has a fortune in stock certificates.
Masked bandit Bimbo holds up a train carrying someone tougher… Betty Boop (with dog's ears), played by a different, deeper-voiced actress.
Koko The Clown continually interrupts an animator, who turns his attention to trapping the clown.
A nightclub owner's wife, jealous of his attentions to his star singer, schemes to get her fired.