|Season 1, Episode 49|
The Lost Lemon Shark
The Giant Spider Crab
Peso and Shellington meet a school of Humuhumunukunukuapua'a (who-moo-who-moo-nuu-koo-nuu-koo-up-pua-ah) as Peso tries to diagnose one called Hank until they get interrupted by Kwazii riding the Gup-B as Hank thinks that its a shark as all the humuhumunukunukuapua'as enter the Octopod as they started clogging all the Octopod's internal pipes. The Octonauts flush all the water in the Octopod, too. Therefore, the Hank and his friends get out of the Octopod.
Hank and the Humuhumunukunukuapua'a