Drums in the Deep South

Drums in the Deep South is an American Civil War war film designed and directed by William Cameron Menzies who was production designer of David O. Selznicks Gone With the Wind 1939 and also designed the cave sequences in Selznicks The Adventures of Tom Sawyer 1938. Based on a story by Civil War author Hollister Noble, the film was produced by an independent company King Brothers Productions, filmed in SuperCineColor and released by RKO Pictures in September 1951. B. Reeves Eason directed the second unit.

By 1864, Clay now an Field Artillery Major in the Confederacy is renowned for accepting but surviving suicide missions. He is given another. To delay General Shermans March to the Sea, a local guide can lead a party of men and their disassembled cannon inside caves that lead to the top of Devils Mountain where a battery of guns can destroy the railroad and the Union troop and supply trains that travel it, buying time for the Confederacy. Devils Mountain is coincidentally near Braxton who is now fighting elsewhere for the Confederacy and Kathys old plantation where Kathy remains with her uncle. Kathy agrees to monitor the activities of the Northern invaders and signal Clays outpost from her window through a mirror by day and a lantern by night. Through her activities, Clays men are notified of the arrival two supply trains and destroy both of them.Arriving at the plantation is Will, who is now a Major in the Union Field Artillery. When the two men meet each other in combat, neither knows it as each is in an artillery position hundreds of yards from the other. However, the love of Clays life, Kathy Summers, does know and tries desperately to save her two good friends from killing each other. ........

Source: Wikipedia