Pirata finds a piece of carved wood which looks like a fragment from a very old pirate ship. After locating the shipwreck with Capitano's help, Pirata wants to explore it right away, despite Capitano's warnings.

The crew hoist a treasure chest onboard and find a mysterious riddle that might lead to some legendary prized treasure. Pirata wants to start the hunt at dawn the next day, but Meowcat seems determined to keep everyone up all night.

Pirate tradition holds that the first to plant their foot on the island with no name gets to christen it. Pirata and Capitano race to be the first to name an island, but a mysterious third pirate also wants to be the first.

Pirata delivers a package of fireworks to a party for inky, but is forced to take a shortcut through stormy seas to make it on time.

Pirata accidentally breaks the pearl that she wanted to give to Inky for her birthday. Not wanting to disappoint her friend, Pirata recruits Captain's help and sets off in search of a new pearl.

Pirata and Capitano overhear a starfish captain claim that he spotted a mermaid off Blue Mist Island. Pirata is convinced that mermaids exist and Capitano is sure that they do not, so they rush over to investigate.