Enigmatic airship engineer Dr. Graham Dorrington embarks on a trip in the heart of Guyana to test his new helium-filled invention. The trip begins with some early mishaps, but with every success, Dorrington is haunted by a similar expedition 12 years ago that killed his friend.

Almost like a self-portrait of Herzog himself, this documentary on Graham Dorrington—who engineered an airship over the forests of Guyana—is not a takedown of its subject’s idealistic notions but a tribute to those who play by their own rules and dare to dream.