Hawk of the Wilderness

Hawk of the Wilderness 1938 is a Republic Movie serial based on the Kioga novel of the same name by pulp writer William L. Chester.

Dr Lincoln Rand Sr, leading an expedition to an uncharted island in the Arctic circle that may be the ancestral home of all Native Americans, is shipwrecked. The only survivors are Lincoln Rand Jr, Dr Rands son and his servant Mokuyi.Years later, a message from the sinking ship is found and an expedition sets out to find the island again. Part of the crew, led by smuggler Solerno, mutinies when they reach the island, abandoning Dr Munro and his expedition. Fortunately, Dr Munro and company are rescued by Lincoln Rand Jr, alias Kioga, the adult son of Dr Rand, who has been raised on the island by Mokuyi. ........

Source: Wikipedia