Diego de la Vega, the son of a wealthy landowner, returns from his studies in Spain and discovers that Los Angeles is under the command of Capitan Monastario, a cruel man who relishes in the misuse of his power for personal gain. Knowing that he cannot hope to single-handedly defeat Monastario and his troops, Diego resorts to subterfuge. He adopts the secret identity of Zorro, a sinister figure dressed in black, and rides to fight Monastario's injustice.

A wealthy woman discovers a vineyard worker with a beautiful operatic singing voice. She helps make him a star but then breaks his heart. He flees in misery to Mexico where he meets a sweet farm girl.

Tom Kenyon and his sidekick Pierre La Farge are hired by rancher Mike O'Day who, with his daughters Toni and Sugar, provides wild horses for the government remount station.

Prince the wonder horse and his gallant rider gallop off to protect hapless ranchers from the ruthless Nazi bad guys who are trying to steal their land so they can exploit the valuable tungsten deposits in this WW II western. Mayhem ensues, but soon the villains are vanquished and America's tungsten deposits are safe once more.

Cholita, after a long absence in Mexico City, is returning home to take up her duties as head of the rancho and, as everyone expects, to marry her childhood sweetheart José. Expectations are somewhat dashed as she shows up with Fernando to whom she is engaged. This makes José and Cholita's uncle more than a little bit put out as Fernando is not only not a Mexican, he is also a city slicker afraid of the country.

Bob Hope is being stalked by a predatory widow who is a widow of wealthy husbands many times over. Martha Raye is a Texan heiress who wants to marry her boyfriend Andy Devine, but her father is determined that she marry into royalty. To solve both their problems, Martha Raye and Bob Hope decide to marry, but will they ever find love together?

Starving playwright Judith Wells meets playboy writer of musicals, George Macrae, over a plate of stolen spaghetti. He persuades producer Sam Gordon to buy her ridiculous play "North Winds" just to improve his romantic chances, and even persuades her to sing in the sort of show she pretends to despise. But just when their romance is going well, Gordon's former flame Lulu reveals the ace up her sleeve...

The operators of a bankrupt carnival sideshow hope to restore their fallen fortunes by staging a fake 'public wedding' in the mouth of their unprofitable giant whale. But the intended 'bridegroom' absconds with the proceeds, arranging a substitute. The bride, Flip Lane (Jane Wyman), much to her surprise, finds herself really married to a handsome stranger, whose career as an artist she decides to manage, much to his dismay.