The Best Episodes of Octonauts
Last Updated: Jan 7, 2019
Animated deep sea adventure series. Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun. Whether it's a perilous voyage to the bottom of the sea or the piratey pursuit of a giant squid, the Octonauts leap into action and always prove that eight heads are better than one.
#1 - The Coelacanth
Season 4 - Episode 20
While exploring a dark and spooky cave, the Octonauts discover the fossil of a powerful, prehistoric fish... but it may be more than just a fossil.
#3 - The Kelp Monster Mystery
Season 4 - Episode 17
Dashi teams up with her little sister, Koshi, to solve a mysterious disappearance in a kelp forest.
#4 - The Loggerhead Sea Turtle
Season 3 - Episode 20
When an underwater tremor separates the Gup-X and its crew, Barnacles seeks guidance from a mysterious sea turtle.
#5 - Operation Cooperation
Season 4 - Episode 16
After Shellington crashes the Gup-D, he and Kwazii team up with a moray eel and grouper fish to pick up the pieces.
#14 - The Hippos
Season 4 - Episode 22
Returning home from Africa, the Octonauts encounter a gang of large, territorial hippos.
#15 - The Sunfish
Season 4 - Episode 24
Join Captain Barnacles and his intrepid band of explorers, The Octonauts, for more deep sea adventures. The Octonauts roam the oceans in search of adventure and fun. Whether it's a perilous voyage to the bottom of the sea or the piratey pursuit of a giant squid, the Octonauts leap into action and always prove that eight heads are better than one. The Octonauts must help a giant sunfish who can't swim straight, before it hurts other sea creatures and itself.
#16 - The Tiger Shark
Season 4 - Episode 21
The young Tiger Star is hungry and willing to eat anything or anyone.
#20 - The Giant Whirlpool
Season 1 - Episode 21
The Octonauts race against time to rescue Tweak's pal, a leatherback sea turtle who's caught in a fast-moving ocean current that's sucking it into a whirlpool.
#24 - The Combtooth Blenny
Season 1 - Episode 33
When Kwazii and Peso are shipwrecked on a desert island, they encounter a Combtooth Blenny - a fish who walks on land! They enlist him to send an SOS message to the other Octonauts.
#25 - The Urchin Invasion
Season 3 - Episode 18
The Octonauts head to the kelp forest to visit Shellington's sister, Pearl, and her newborn son Periwinkle - only to find the forest endangered by an infestation of kelp-eating urchins!