Jason, Tann, Lua, and Kong travel to the deep jungles of Central Africa to seek out the Gwake tribe. These isolated pygmies hold one of the secrets of the Primal Stones. While rescuing a Gwake child from a hungry panther, Jason discovers a hollow tree filled with ancient hieroglyphics. Our heroes are captured by the pygmies and brought before Ramone De La Porta who has convinced the Gwake that HE is the Protector. He drugs Jason and seizes control of his mind. With Jason's help De La Porta activates the Primal Earth Stone giving Ramone the power to instantly grow plants and crops. Kong attacks, and in the confusion the Stone is lost in a lake causing all the local plant life to grow out of control. The runaway plants destroy the Gwake village, freeing Tann and Lua. De La Porta attacks Kong with carnivores plants, but with Jason's help, Kong beats the plants, then fights his way through the plant life to retrieve the Primal Stone. Order is once again restored to the jungle.