A group of jolly pirates are sailing on their ship while all of them are scared of a storm. Meanwhile, the pirates' brave captain, Red Pirate Ron, who speaks in a language only understood by his parrot, warns his pirates to lower the sails. Later, Tom Cat and Jerry Mouse travel aboard the same pirate ship. It is soon revealed that Ron is searching for the "Lost Treasure of the Spanish Mane" and by chance, a wave carries the map to the treasure aboard. Tom hides the map, but is warned by the ghost of the Spanish Mane's captain, Don Diego de Clippershears, that if the map is not returned to its bottle by sunset, a curse will begin.