Airship engineer Dr. Graham Dorrington embarks on a trip to the giant Kaieteur Falls in the heart of Guyana, hoping to fly his helium-filled invention above the tree-tops. But this logistic effort will not be without risk. Twelve years ago, a similar expedition ended in disaster. With the expedition is Werner Herzog, setting out with a new airship prototype, into the Lost World of the pristine rain forest of this little explored area of the world.