Middle-class housewife Kay Miniver deals with petty problems. She and her husband Clem watch her Oxford-educated son Vin court Carol Beldon, the charming granddaughter of the local nobility as represented by Lady Beldon. Then the war comes and Vin joins the RAF.
Boston pharmacist Tom Craig comes to Sacramento, where he runs afoul of local political boss Britt Dawson, who exacts protection payment from the citizenry. Dawson frames Craig with poisoned medicine, but Craig redeems himself during a Gold Rush epidemic.
Danny, a poor northern Californian Mexican-American, inherits two houses from his grandfather and is quickly taken advantage of by his vagabond friends.
In 1940 England, aristocratic Prudence Cathaway alarms her snobbish parents by joining the WAF service branch. She soon meets and falls in love with the brooding Clive Briggs, despite his prejudice against the upper classes, and agrees to spend a week with him at a Dover hotel. When Clive's soldier friend, Monty, arrives to retrieve him, Prudence learns that Clive went AWOL after Dunkirk, and urges him to recall why England must fight the war.
A penniless former princess weds an equally cash-strapped baron, so they support themselves by becoming houseguests at the homes of wealthy American socialites.
Miss Winters is a dancer with the Tommy Dorsey Orchestra and is asked to secretly transport a prototype magnetic mine to Puerto Rico. She thinks that she is working for the US Government, but fails to see why she would be involved.
Rival reporters Sam Craig and Tess Harding fall in love and get married, only to find their relationship strained when Sam comes to resent Tess' hectic lifestyle.
Lovely Linda Mason has crooner Jim Hardy head over heels, but suave stepper Ted Hanover wants her for his new dance partner after fickle Lila Dixon gives him the brush. Jim's supper club, Holiday Inn, is the setting for the chase by Hanover and his manager.
Penny Morris and Tommy Williams are both starstruck young teens but nobody seems to give them any chance to perform. Instead, they decide to put up their own show to collect money for a summer camp for the kids.
A middle-aged businessman who has lived a conservative life according to the routine conventions of society, still remembers the beautiful young woman who once brought him out of his shell.
A group of academics have spent years shut up in a house working on the definitive encyclopedia. When one of them discovers that his entry on slang is hopelessly outdated, he ventures into the wide world to learn about the evolving language. Here he meets Sugarpuss O’Shea, a nightclub singer, who’s on top of all the slang—and, it just so happens, needs a place to stay.
Successful movie director John L. Sullivan, convinced he won't be able to film his ambitious masterpiece until he has suffered, dons a hobo disguise and sets off on a journey, aiming to "know trouble" first-hand. When all he finds is a train ride back to Hollywood and a beautiful blonde companion, he redoubles his efforts, managing to land himself in more trouble than he bargained for when he loses his memory and ends up a prisoner on a chain gang.
The story follows General George Armstrong Custer's adventures from his West Point days to his death. He defies orders during the Civil War, trains the 7th Cavalry, appeases Chief Crazy Horse and later engages in bloody battle with the Sioux nation.