As king of the jungle, Tarzan (Mike Henry) helps the female journalist Myrna (Alizia Gur) look for a mysterious jungle boy. Eric (Ronald Gans) has survived a plane crash which killed his father seven years earlier. To find the boy, the two team up to battle evil native Magambi (Rafer Johnson) and the usual jungle dangers. The party must travel into the wilds of Zagunda to save the boy, who for the last seven years has managed to get along just fine on his own in this predictable, routine jungle romp.