Smugglers are using a device for controlling airplanes in flight, and newspaper reporters from Chicago are vying for the story. Reporter Elmer Lane is out to scoop rival reporter Betty Harrison, and capture her heart in the process.

Rick Leland makes no secret of the fact that he has no loyalty to his home country after he is court-martialed out of the army and boards a Japanese ship for the Orient in late 1941. But has Leland really been booted out, or is there some other motive for his getting close to fellow passenger Doctor Lorenz?

When the representative of the Paris International Dance Exposition arrives in New York to invite the Academy Ballet of America to compete for monetary prizes, the taxi driver mistakenly brings him to the Club Ballé, a nightclub on the brink of declaring bankruptcy. The owners, Terry Moore and Duke Dennis, jump at the chance to go, despite being aware of the mistake. They hire ballet teacher, Luis Leoni, and his only pupil, Kay Morrow, to join the group, hoping to teach their two dozen show girls ballet en route to Paris by ship. Also going along and rooming with Kay is Mona, Terry's ex-wife, who wants to keep an eye on her alimony checks. Naturally, Kay and Terry fall in love.

A Russian dance company agrees to stage the new ballet written by a vaudeville hoofer.

A salesman tries to sell a tractor to a customer who hates tractors while falling for the girl.

Donald Hardwick (Dick Powell) is a stuffed-shirt, classical music professor. His family and small-town music college that he works are of equal mindset. When Don visits his black-sheep aunt in New York in order to find a buyer for his Rhapsody he is exposed to her shocking swing music crowd. His life begins to make dramatic changes after drinking a "lemonade" that turns out to be a Hurricane.

The film tells the story of vaudeville performers in San Francisco, during the period of the 1915 Panama Pacific Exposition when Alexander Graham Bell made the first transcontinental phone call from New York City to San Francisco. The movie introduced the song "You'll Never Know", which was sung by Alice Faye and won an Academy Award for best original song. Although Faye never made an official recording of the song, it is often named as her signature song.

Joe and Paul Fabrini are Wildcat, or independent, truck drivers who have their own small one-truck business. The Fabrini boys constantly battle distributors, rivals and loan collectors, while trying to make a success of their transport company.

Hank McHenry and Johnny Marshall work as power company linesmen. Hank is injured in an accident and subsequently promoted to foreman of the gang. Tensions start to show in the road crew as rivalry between Hank and Johnny increases.

Helen Brent has just received a Reno divorce. That night, she discovers one of her neighbors, Laury Palmer, and a gentleman caller murdered in their home. The killer is her neighbor's other boyfriend, who won't abide anyone "cutting in" on him. This is Sam Wilde, a man who knows what he wants, is insanely jealous of what he has, and will kill to keep it. Rather than tell the police what she knows, Helen hops a train back to San Francisco...

Reporter Curt Devlin loves sob sister Ellen Garfield but believes women are "bum newspapermen". When she learns the identity of a murdered arsonist, he calls it luck. When she goes after the murderer he gets enough evidence to have Maitland Coulter arrested. She finds a bunch of "not guilty" ballots and publishes the wrong story; he eavesdrops on the jury and gets the correct verdict. After being fired she gets a confession from the real killer and gets Coulter released.

After World War I, Armistice Lloyd Hart goes back to practice law, former saloon keeper George Hally turns to bootlegging, and out-of-work Eddie Bartlett becomes a cab driver. Eddie builds a fleet of cabs through delivery of bootleg liquor and hires Lloyd as his lawyer. George becomes Eddie's partner and the rackets flourish until love and rivalry interfere.