After considerable difficulty, Dr. Linda Roberts manages to locate Jungle Jim - he saves her from a black panther - wanting him to act as her guide in finding the land of the giant people. Roberts is an anthropologist and wants to study theses giants but Jim thinks it's far too dangerous. Meanwhile, greedy ivory hunters plot to get their hands on a herd of elephants with only the giants standing in their way. When Jim learns of the poachers' plans, he sets off with Linda to stop them. Along the way Jim will fight hippos, thieving natives and the inevitable elephant stampede.
—garykmcd