Tarzan and Jane are searching for their newborn son Jack, who has been kidnapped. Both are captured by the villainous Nikolas Rokoff. Tarzan is standed on a deserted island, but with the help of animals and a newfound friend, Mugambi, he escapes and finds Rokoff's boat. He discovers Jane, trying to keep Rokoff's men at bay with a rifle. With a little help from his wild friends, Rokoff's criminal career ends. Tarzan returns to his London home to find baby Jack unharmed; he has been in an English orphanage all along.; Bantu lures hyenas away from the village.; Brief descriptions of some of the world's man-built wonders.; Brief descriptions of some of the world's flightless birds.