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.

When Captain Sabertooth and his men arrive on the mysterious island of Grail, they are warned by the sorceress Miriam of Grail that the island's ruler, the Count of Grail, is evil and wants to replace Captain Sabertooth as king of the sea.

When Kaptein Sabeltann and his men land on the mysterious island Gral, they are warned by the sorceress Miriam av Gral, that the lord of the island, Greven av Gral (the Count of Gral), is cruel and mad, and would like to replace Kaptein Sabeltann as the king of the sea.

A classic from 1998. With the "original cast", Terje Formoe as Captain Sabertooth, Janne Formoe as Sunniva and Morten Usterud as Pinky. Fredrik Hognerud Træland plays Joachim, the kid who doesn't give up on his dream of the one and only King of the Sea.