The oddly-assorted Hart cousins: revue singer Blossom, con man Harry, and machinist Chiquita (who gets radio through her teeth!), inherit southern plantation Magnolia Manor, which alas proves to be a "termite trap" and tax liability. Fortunately, Sgt. Rocky Fulton from a nearby army camp appears with a plan to convert the place to a hotel for army wives; but to pay bills until then, they decide to put on a show. Of course, romantic and military complications intervene...

After cousins actress Blossom Hart, defense plant worker Chiquita Hart and inventor Harry Hart each learn that they are heirs to a large plantation in Masonville, Georgia, they travel separately to Masonville, and in the office of lawyer Col. Jefferson L. Calhoun, meet for the first time. As they are all poor, they are thrilled by the inheritance, but when Calhoun takes them to Magnolia Manor, they discover that the once glorious plantation house is now a ruin. In addition, paying the plantation's various property and inheritance taxes will put them deeply in debt. While the cousins are bemoaning their fate, Staff Sgt. Ronald "Rocky" Fulton, who was a well-known orchestra leader before joining the military, arrives with some of his men, including Sgt. Laddie Green. Rockie explains that the married service men of nearby Camp Dixon want to rent rooms in the manor for their wives, who have been unable to live close to their husbands due to a lack of available housing. The men pitch in and help the cousins fix up the manor, although Chiquita is continually bothered by the fact that she can pick up radio programs on the fillings in her teeth. Rocky, who has begun a romance with Blossom, suggests that they put on a musical show to raise funds for the renovations. On the day that "The Old Southern Corn Revue" is to open, Blossom is stunned by the arrival of Melanie Walker, a snobbish, rich woman, who Rocky is forced to admit is his fiancée. Melanie, believing that Rocky has arranged for the manor to be let just for her, imperiously announces the changes she intends to make, and the infuriated Blossom refuses to speak to Rocky. Before the show, Rocky explains to a disapproving Chiquita that he loves only Blossom. The show is a big success, and the next morning, Chiquita advises Blossom to fight for Rocky if she loves him. The snooty Melanie ends up covered with eggs after she tries to work one of Harry's new inventions, and she seeks solace from Lt. Ashley Crothers. While the lieutenant is there, he discovers that Harry is hosting a dice game for some of the soldiers, none of whom have wives staying at the manor. Crothers arrests the soldiers and recommends that the house be posted as off-limits for all military personnel. Col. Grubbs approves Crother's suggestion, and soon the wives are packing to leave. Meanwhile, after Harry learns that carborundum from the defense plant got into Chiquita's fillings and is causing her to receive radio programs, he decides to build an invention around the idea. One afternoon, Rocky comes to the house to try to talk to Blossom, who refuses to see him. Rocky is supposed to be on duty for war games, and is captured by the "enemy" army, which has taken over the manor as its headquarters. Hoping to save both his stripes and the manor, Rocky enlists the aid of Chiquita and Harry, who begin building a transmitter to send a message to Rocky's unit via Chiquita's teeth. The message is sent, and the cousins distract the "enemy" army with a song and dance show while Rocky's army assembles for its attack. Soon after, Rocky's side has prevailed in the manuevers, and in appreciation of Blossom, Chiquita and Harry's help, the off-limits sign is removed and the manor is once again the site of much happiness for the military men and their wives. At a celebratory party, Rocky announces that he has been selected for officer's candidate school, and the happy Blossom reconciles with him.