The Mandarin of How Fat hires Gaston and Pierre, who pose as Chinese take-away chefs to gain access to Castle Duckula and try and steal two vases, but Igor throws them out.

Later, on the Island of Mai Chow, Duckula and his servants try to locate hidden treasure using the vases as a map. They are pursued by the evil Mandarin and his henchman along with the Pirate Penguins who end up getting arrested because Nanny broke one of the vases earlier and glued it back together wrongly, resulting in a misleading map.