A world study of wildlife in danger and of the wild places where the rare ones live.
A film series by Eugen Schuhmacher.
Commentary by Peter Scott.

The biggest of the United States, a land of few roads and railways, Alaska is almost unspoilt by man. But even there rare animals like the Pacific walrus have to be protected; even there the great herds of caribou, the North American reindeer, which are now so numerous, may be facing a new danger.
Presented by the BBC Natural History Unit
From the West