Roaming the vast jungles of Congo with his best friend, Bongo the gorilla, Antonio della Buffas, a mysterious man whom the natives call the "white monkey", is utterly unaware that he is the long-lost son of a wealthy explorer. Then, three opportunists manage to capture and bring the white savage to civilisation, bent on getting their hands on his immense fortune.

A man comes home from the war and finds both his plant and his family destroyed.