Roger Hudson, a wealthy businessman who has moved to Washington to work for the government as a "dollar a year man," is late for a radio broadcast about his new department, the Mobilization of Woman Power for War. He takes a cab driven by Dixie Dugan, who hopes that being a cabbie while the country's men are away fighting will help the war effort. Her incompetent driving, however, results in an accident for which Roger must take responsibility in order to reach the radio station in time. Dixie then returns home, where she lives with her father Timothy, who is constantly practicing his air raid warden duties, her mother Gladys, an aspiring Red Cross worker, and cousin Imogene, who studies incessantly to become a "quiz kid." The Dugans rent out their spare rooms to Dixie's fiancé, Matt Hogan, and to blustering Judge J. J. Lawson. Matt, who works in a munitions factory, wants Dixie to settle down and marry him, but Dixie is determined to help her country.

The health conscious, dairy-farming Higgins family begin each day with an invigorating swim. One day, traveling health-tonic salesman, Windy Weebe, comes to town and suggests they could swim the English Channel. Sponsored by "Liquapep" and coached by Windy, the family arrive in Europe. There it is decided that daughter Katie is the only one strong enough to enter the contest. But while she should be focused on the difficult and risky task ahead, Katie is pursed by dashing Frenchman, André Lanet... This comedic musical is well remembered for the scene when Katie dreams she is swimming with cartoon characters Tom & Jerry!

Broadway partners Vicky Lane and Dan Christy have a tiff over Christy's womanizing. Jealous Vicky takes up with her old flame and former dance partner, Victor Price, and Dan's career takes a nosedive. In hopes of rekindling their romance and getting Vicky back on the boards with him, Dan follows her to a ritzy resort in the Canadian Rockies, where she and Victor are about to open their new act. But things get complicated when Dan wakes after a bender to find that he's hired an outlandish Latin secretary, Rosita Murphy, which makes Vicky think he's just up to his old tricks again.

After losing nearly all of an inheritance to taxes, sisters Kay and Barbara Latimer, waitresses at a drive-in restaurant in Texas, scheme to find rich husbands. With the aid of their aunt Susan, the sisters take the last of their money and head to a well-known Miami resort where they soon meet two wealthy young men, Phil and Jeff, who begin a fierce rivalry for Kay, not realizing that Barbara has fallen in love with one of them.