A Southern Yankee.

A light comedy with a Civil War setting. Southern bell-boy Red Skelton is forced to exchange uniforms with a Northern spy, who wears the uniform of a Confederate major. A chase ensues.

Aubrey Filmore works as a bell boy at the Palmer Hotel in St. Louis, Missouri. He wants to work as a spy for the Union Government, and contacts Colonel Clifford M. Baker at the Union Secret Service, to ask if he can be of service in their elite spy unit. Aubrey is then involved in a complicated scheme to intercept the Union forces, and is given the important task of delivering the Union battle plans to the Confederate General.