Cleite has been naughty. For punishment, his father sent him to search for pearls. Fortunately, his friends, Crúca Beag and Péarla, accompany him to the Island of Pearls. But Féasóg Bhearrtha, the fiercest pirate on the seven seas is on his way to the island too, in search of pearls…. Cleite, of course, is a good pirate. He lives with all his family on the pirate ship, An Bolg Lán. When he isn’t working on the ship, he spends the day searching for treasure, or playing with his friends, Crúca Beag and Péarla.