A singing military officer gets mixed up with his look-alike hillbilly cousin.

The Air Force wants to build an ICBM base atop Big Smoky Mountain in Tennessee, but each time they try to talk to Pappy Tatum, a hillbilly moonshiner who owns the land they need, he greets them with gunfire. The Air Force then sends Josh Morgan, who was born in the area, to talk with Tatum. Josh turns out to be an exact double, except for hair color, of Tatum's nephew Jodie, and it is discovered that he is their distant cousin. Josh has a hard time trying to placate Tatum while trying to cool the romantic ardor of his two daughters, Selena and Azalea, at the same time. When Tatum gets lost hunting, Josh takes out a patrol to look for him, but they are hindered by the Kittyhawks, 13 man-starved women from a nearby valley. Josh rescues Tatum, and when General Healy arrives from the Pentagon, Josh tells him that Tatum will lease the land for the base if the government will keep trespassers--including the hated "revenooers"--off his part of the land. Healy agrees. Meanwhile, Jodie has fallen in love with Midge, a WAC sent to help Josh with paperwork, and Sergeant Bailey, Josh's buddy, has fallen for Selena. Josh and Azalea also find themselves in love.