Six German boys visit the zoologist writer Bengt Berg in Sweden where they are shown film footage of water animals, migratory birds and elephants in the Nile area, narrated by the host's naturalistic adventure stories.
| Actor | Role |
|---|---|
| BBengt BergSelf | Self |
| BBolette BergSelf | Self |
| IInger BergSelf | Self |
| JJensemann BergSelf | Self |
| KKarlheinz HornHans | Hans |
| HHelmut FockeEmil | Emil |
| BBernd RussbültWerner | Werner |
| WWolfgang LohmeyerHellmuth | Hellmuth |
| KKlaus Detlef SierckKarl | Karl |
| HHans SchulzDieter | Dieter |
| KKurt FeldenCaptain Ingwersen | Captain Ingwersen |
| HHeinz JungklausDepartment Leader | Department Leader |