A severe drought has ruined the carrot crop in Bugs Bunny's northern home. Upon learning of a boom crop in Alabama, Bugs decides to happily make the trip to the fertile soils. After a lot of walking, he finds himself near the Mason–Dixon line that separates the drought-ravaged north from the fertile south; but as soon as he crosses the line, he is shot at by "Colonel" Sam, who chases Bugs back over the line. Bugs asks Sam what the deal is, only to hear Sam somehow believes that he is a soldier of the Confederate States of America and has received orders from General Lee to guard the borders between the Confederate States and the United States. When Bugs points out that "the war between the states ended almost 90 years ago", Sam says "I ain't no clock watcher!", and that he will stay there unless he hears the orders to do otherwise from Lee, that, obviously, will never come. He shoots at Bugs and forces him to run away, prompting the rabbit to make several attempts to shake his antagonist. First, Bugs disguises himself as a banjo-playing slave, singing "My Old Kentucky Home." When Sam asks for something "more peppy", Bugs promptly sings "Yankee Doodle", leading Sam to call Bugs a traitor. Bugs then begs Sam not to beat him, and forces a whip into Sam's hands. Then, after fleeing from Sam, Bugs immediately comes back in disguised as Abraham Lincoln, scolds Sam for "whipping slaves", and hands him a card to "look up at Gettysburg Address". Bugs' cover is blown, however, when Sam sees his cotton tail sticking out of Abe's trenchcoat. Infuriated, Sam chases Bugs into a tree. Bugs blows out Sam's match when he tries to light a bomb, and when Sam tries it again away from the tree, he blows it out with an extended pipe. Sam goes even further away in the third attempt, but with more ground to cover, the fuse runs out as Sam runs back, and the bomb detonates in his hands. Bugs then disguises himself as Stonewall Jackson, fooling Sam into marching into a well. Afterwards, Bugs flees from Sam into a mansion, where he disguises himself as Scarlett O'Hara, and when Sam attempts to search the mansion, he takes a cannon blast while looking inside a closet and is dissuaded from searching any further. Bugs at last succeeds in getting Sam when, disguised as an injured Confederate soldier, he informs him that the Yankees are in Chattanooga. Sam heads to Chattanooga, and the finale has him threatening the New York Yankees, preventing them from competing in an exhibition baseball game against the Chattanooga Lookouts.
