Elsie Mae is pretty sure this'll be the best summer ever.

She gets to explore the cool, quiet waters of the Okefenokee Swamp around her grandparents' house with her new dog, Huck, and she's written a letter to President Roosevelt that she's confident will save the swamp from a shipping company and make her a major hometown hero. Then, news reaches Elsie Mae of some hog bandits stealing from swamper families, and she sees another opportunity to make her family proud while waiting to hear back from the White House.

But when her cousin Henry James, who dreams of one day becoming a traveling preacher like his daddy, shows up and just about ruins her investigation with his "Hallelujahs," Elsie Mae will learn the hard way what it really means to be a hero.