A disaster in the 19thcentury has stranded woman and a man in the wilds of Africa. The lady gives birth to a kid in their own tree house, and is pregnant. A group group of apes stumble upon the house and in the consequent panic, both parents are murdered Right after. A female ape takes the very small boy for a replacement on the dead infant, and raises him as her mother. Twenty decades after, Captain Phillippe D'Arnot discovers. Evidence within the tree dwelling leads him to think that he is the descendant of the Earl of Greystoke, and takes it upon himself to come back the man to civilization.