In 1966, Heinz Sielmann sets off on his longest expedition. He spent 19 months traveling through the wilderness of North America. From the alligator swamps of the Everglades to the breeding grounds of arctic waterfowl.
| Writing | Heinz Sielmann | Writer |
| Directing | Heinz Sielmann | Director |
| Production | Heinz Sielmann | Producer |
| Sound | Hans Posegga | Original Music Composer |
| Camera | Heinz Sielmann | Director of Photography |
| Camera | Georges Theilacker | Director of Photography |
