A routine holiday for Grandfather and his canine sidekick Roo turns into an adventure when the two join an expedition to find the Door to the Sea.
Sailing aboard the good ship Unsinkable, the intrepid explorers endure high waves, tall tales, and deteriorating table manners. Finally, the adventurers reach their destination, pulling in boatloads of codfish with their nets, all the while keeping an eye out for a glimpse of the mighty King Cod himself...