Octonauts (2010)

S2E14 The Swashbuckling Swordfish

The Octonauts spot a rare full moon and Kwazii learns it’s referred to as the Pirate Moon. Intrigued, he leads the team on a quest to locate a ship that once belonged to the legendary pirate king. As Kwazii searches for the Pirate King’s sword, he encounters a trio of swordfish that block his path, making it difficult for him to approach the sunken vessel.