Dixie World: The Adventures of an Immortal Being describes the 60,000-year existence of David Greene, who is just coming out of hibernation after a few decades of rest. He has survived all kinds of wars and danger, but now sees the planet Earth faced with ecological and moral disaster. With his wife and saber-toothed cat beside him, he recruits others to become part of his "Greene Team" that hopes to bring peace and truth to the world.