Some mysterious holes that keep appearing in the Octonauts' equipment turn out to be the work of cookiecutter sharks whose bioluminescence initially made them invisible against the light coming down from the sea surface.
Episodes
The Undersea Storm
2010-10-05
The Giant Squid
2010-10-11
The Great Algae Escape
2010-10-13
The Walrus Chief
2010-10-07
The Flying Fish
2010-10-08
The Narwhal
2010-10-26
The Monster Map
2010-10-19
The Crab and the Urchin
2010-10-06
The Albino Humpback Whale
2010-10-21
The Remipedes
2010-10-14
The Orcas
2010-10-12
The Blobfish Brothers
2010-10-18
The Decorator Crab
2010-11-05
The Whale Shark
2010-10-04
The Cookiecutter Sharks
2010-12-13
The Jellyfish Bloom
2010-12-16
The Speedy Sailfish
2010-10-15
The Vampire Squid
2010-12-08
The Humuhumunukunukuapua'a
2011-02-10
The Giant Spider Crab
2011-02-11
The Giant Kelp Forest
2010-10-22
The Hermit Crabs
2010-11-02
The Hungry Pilot Fish
2010-12-07
The Beluga Whales
2010-12-06
The Snot Sea Cucumber
2010-10-29
The Giant Whirlpool
2010-11-01
The Slime Eels
2011-01-26
The Arctic Orcas
2011-01-25
The Lost Sea Star
2010-10-20
The Giant Jelly
2010-12-10
The Snapping Shrimp
2010-10-28
The Kelp Forest Rescue
2010-11-04
The Enormous Elephant Seal
2011-01-27
The Sardine School
2011-01-28
The Eel Ordeal
2011-02-01
The Dolphin Reef Rescue
2011-01-31
The Pirate Parrotfish
2011-02-04
The Electric Torpedo Rays
2011-02-07
The Midnight Zone
2010-10-27
The Mixed-Up Whales
2010-11-03
The Seahorse Tale
2010-12-09
The Enemy Anemones
2010-10-25
The Crafty Cuttlefish
2011-02-08
The Lost Lemon Shark
2011-02-09
The Baby Dolphin
2010-12-17
The Scary Spookfish
2011-01-24
The Oarfish
2010-12-14
The Combtooth Blenny
2010-12-15
The Marine Iguanas
2011-02-02
The Dwarf Lantern Shark
2011-02-03
Voice Cast
Trailers & Extra Content
Octonauts | Official Preview | Disney Junior
