Kaptein Sabeltann is back! And when the people of Kjuttaviga also find a parchment that says there is another treasure from the pirate Grusomme Gabriel in Kjuttaviga, things really become wild.
A young boy named Espen Søplekladden is leaving home. He starts to work at a jazz café named "Balla Jazzhus". But his evil brother is trying to make everything bad for him.
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.
As the new millenium approaches, Karl & Ulf ('Karl & Co') begin planning a big party, reuniting Karl with some old friends he thought he'd seen the last of.