Left in charge of the office when his employer, J. C. Dithers, is called out of town on a business deal, Dagwood Bumstead is invited by Mayor Denby to attend a meeting of the town's businessmen to discuss the unemployment problems of veterans. At the meeting, Dagwood is inveigled into hiring Sgt. Betty Jane McDermott, a discharged WAC, to work as an architect in the Dithers' construction firm. Dagwood brings Betty Jane home for dinner, and Blondie, his wife, makes her an honorary family member. Soon after, Dithers' business deal collapses and he unexpectedly returns, determined to cut expenses. When Dithers objects to Betty Jane's employment, Blondie vociferiously opposes him, leading Dithers to angrily fire both Betty Jane and Dagwood. Blondie then encourages Betty Jane and Dagwood to open their own construction company and suggests contacting theater tycoon Jonathan Butler, Sr., a client of Dithers who is interested in building an outdoor theater. By mistake, Dagwood phones Jonathan Butler, Jr., the profligate son of the tycoon. Disowned by his father, Johnny eagerly accepts Dagwood's invitation to dinner. After several nights of wining and dining Johnny, Dagwood's savings are completely depleted, and he discovers that he has been lavishing money on the wrong Butler. Johnny, who has fallen in love with Betty Jane, arranges for Dagwood to pose as a masseur to gain admittance to his father's office so that he can show Butler the blueprints for the theater. As Dagwood massages Butler, Dithers enters the office and discovers that Butler has fallen asleep. When Dagwood demonstrates his technique on Dithers, he falls asleep, too. Finding both her boss and Dithers passed out, Butler's secretary summons the police, but soon after, Dithers and Butler awaken. Although Butler is impressed by his son's initiative and Dagwood's plans, he is prevented from awarding them the project because of his previous commitment to Dithers. Dithers then suggests that he and Dagwood join forces to build the theater, and they amicably shake hands on the deal.