A little boy is fleeing through the jungle. His name is Marco, and he is Pinky's little brother. Pinky and Sunniva have set off to try to find him. At the same time, Captain Sabeltann himself has sailed from the Invisible Land. For years, he has been searching for the Magic Diamond. Now rumors lead him to Shangri La, a remote South Sea beach. Deep in the jungle, on the other side of the suspension bridges, lurks a deadly enemy: Maga Kahn, the evil prince of the jungle, and his queen, Sirikit. The stage is set for a nerve-racking duel.