The BEST episodes of Octonauts season 1

Every episode of Octonauts season 1, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Octonauts season 1!

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.

Last Updated: 11/13/2024Network: CBeebiesStatus: Continuing
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The Dwarf Lantern Shark
star
8.71
48 votes

#1 - The Dwarf Lantern Shark

Season 1 - Episode 44 - Aired 2/3/2011

Down in the darkness of the ocean deep, Peso and the Octonauts must help a tiny, injured Dwarf Lanternshark. But they have to find him first!

Watch Now:Amazon
The Eel Ordeal
star
8.28
70 votes

#2 - The Eel Ordeal

Season 1 - Episode 42 - Aired 2/1/2011

The Octonauts travel up a treacherous river to help a young migrating eel on her difficult journey.

Watch Now:Amazon
The Dolphin Reef Rescue
star
8.08
73 votes

#3 - The Dolphin Reef Rescue

Season 1 - Episode 41 - Aired 1/31/2011

When the Octonauts all pitch in to help save a sick coral reef, they get some unexpected help from a pod of playful dolphins.

Watch Now:Amazon
The Arctic Orcas
star
7.93
105 votes

#4 - The Arctic Orcas

Season 1 - Episode 37 - Aired 1/25/2011

When Captain Barnacles and Peso get lost in the icy Arctic sea, a pod of Orcas help the Octonauts find them.

Watch Now:Amazon
The Jellyfish Bloom
star
7.82
107 votes

#5 - The Jellyfish Bloom

Season 1 - Episode 34 - Aired 12/16/2010

When Shellington gets trapped in the middle of a massive Jellyfish bloom, it's up to the Octonauts to rescue him.

Watch Now:Amazon
The Kelp Forest Rescue
star
7.79
73 votes

#6 - The Kelp Forest Rescue

Season 1 - Episode 24 - Aired 11/4/2010

When Peso's little brother, Pinto, comes to visit, he's more interested in being a pirate than a medic – at least until he accompanies Peso on a mission to rescue Dashi and Shellington in a kelp forest.

Watch Now:Amazon
The Giant Kelp Forest
star
7.73
117 votes

#7 - The Giant Kelp Forest

Season 1 - Episode 15 - Aired 10/22/2010

When Kwazii's favorite sub, the Gup B, goes missing, the Octonauts journey into a mysterious kelp forest to find it, meeting strange and interesting creatures along the way.

Watch Now:Amazon
The Oarfish
star
7.65
141 votes

#8 - The Oarfish

Season 1 - Episode 32 - Aired 12/14/2010

Dashi snaps a picture of what appears to be a sea serpent, but the truth is stranger than fiction when it turns out to be an awesomely long Oarfish.

Watch Now:Amazon
The Snot Sea Cucumber
star
7.62
173 votes

#9 - The Snot Sea Cucumber

Season 1 - Episode 20 - Aired 10/29/2010

When a slimy, slippery snot sea cucumber gets loose on the Octopod, Captain Barnacles Bear decides the only way to save it is to flood the ship!

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The Snapping Shrimp
star
7.58
143 votes

#10 - The Snapping Shrimp

Season 1 - Episode 19 - Aired 10/28/2010

The Octonauts encounter a snapping shrimp – a small creature that uses its claws to make a big, and stunning, noise.

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The Narwhal
star
7.54
144 votes

#11 - The Narwhal

Season 1 - Episode 17 - Aired 10/26/2010

While exploring the Arctic, the Octopod gets trapped in the ice. Only Barnacles's skillful navigation, and the help of a friendly Narwhal, can get them free.

Watch Now:Amazon
The Combtooth Blenny
star
7.53
138 votes

#12 - The Combtooth Blenny

Season 1 - Episode 33 - Aired 12/15/2010

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.

Watch Now:Amazon
The Vampire Squid
star
7.52
148 votes

#13 - The Vampire Squid

Season 1 - Episode 28 - Aired 12/8/2010

Peso must gather all his courage when he travels deep down to the very bottom of the ocean, the Midnight Zone, and encounters the mysterious Vampire Squid.

Watch Now:Amazon
The Lost Sea Star
star
7.51
151 votes

#14 - The Lost Sea Star

Season 1 - Episode 13 - Aired 10/20/2010

When the Octonauts find an unusual Sea Star on the beach, they search the ocean from top to bottom (literally) to help find its home.

Watch Now:Amazon
The Baby Dolphin
star
7.49
137 votes

#15 - The Baby Dolphin

Season 1 - Episode 35 - Aired 12/17/2010

When a young dolphin follows Kwazii home, he has to babysit while the other Octonauts search for its mother.

Watch Now:Amazon
The Remipedes
star
7.47
207 votes

#16 - The Remipedes

Season 1 - Episode 9 - Aired 10/14/2010

When Shellington gets lost in a dark sea cave, he gets unexpected assistance from some blind Remipedes.

Watch Now:Amazon
The Hungry Pilot Fish
star
7.44
166 votes

#17 - The Hungry Pilot Fish

Season 1 - Episode 27 - Aired 12/7/2010

The Octonauts are chased by a whitetip shark only to discover all it really needed was a pilot fish to clean its teeth, and it just so happens that they have just met a lonely pilot fish that is hungry for action.

Watch Now:Amazon
The Mixed-Up Whales
star
7.40
159 votes

#18 - The Mixed-Up Whales

Season 1 - Episode 23 - Aired 11/3/2010

When the Octonauts clean and repair their ship, the Octopod, the resulting noise causes a nearby blue whale to act in strange and dangerous ways.

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The Giant Squid
star
7.38
251 votes

#19 - The Giant Squid

Season 1 - Episode 6 - Aired 10/11/2010

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 set out to find and photograph Inkling's long lost cousin, the elusive Giant Squid.

Watch Now:Amazon
The Monster Map
star
7.37
238 votes

#20 - The Monster Map

Season 1 - Episode 12 - Aired 10/19/2010

The Octonauts follow an old map to what Kwazii believes is treasure guarded by a sea monster but, instead, they meet a playful Octopus with all kinds of surprising abilities.

Watch Now:Amazon
The Blobfish Brothers
star
7.35
208 votes

#21 - The Blobfish Brothers

Season 1 - Episode 11 - Aired 10/18/2010

The Octonauts must evacuate sea creatures before an underwater volcano erupts, but there's one creature that won't budge: a slow moving, gelatinous Blobfish.

Watch Now:Amazon
The Cookiecutter Sharks
star
7.33
165 votes

#22 - The Cookiecutter Sharks

Season 1 - Episode 31 - Aired 12/13/2010

What keeps making strange holes in the Octonauts' equipment? Turns out it's a trio of pesky Cookiecutter Sharks, the mosquitos of the sea!

Watch Now:Amazon
The Orcas
star
7.33
240 votes

#23 - The Orcas

Season 1 - Episode 7 - Aired 10/12/2010

When a huge Orca whale becomes stranded on a beach, Captain Barnacles Bear and the Octonauts devise a plan to pull him back into the water, with some help from a group of tunnelling Fiddler Crabs.

Watch Now:Amazon
The Enemy Anemones
star
7.30
144 votes

#24 - The Enemy Anemones

Season 1 - Episode 16 - Aired 10/25/2010

The Octonauts and some helpless crabs are caught between two territorial groups of aggregating anemones - and their numbers are growing!

Watch Now:Amazon
The Lost Lemon Shark
star
7.26
135 votes

#25 - The Lost Lemon Shark

Season 1 - Episode 48 - Aired 2/9/2011

The Octonauts have their hands full as they look after a headstrong young Lemon Shark who's hurt his nose and can't find his way home.

Watch Now:Amazon