Octonauts - Season 3
Run Time: 15 mins
Air Date: Wed, 4 Sept 2013
Average Rating: ⭐ 7.1 (47 votes)
CBeebies20 Episodes
The Siphonophore
Season 3 - Episode 1
Kwazii and Dashi become entangled in a strange deep-sea creature - a siphonophore.
The Water Bears
Season 3 - Episode 2
The gang ventures into a red-hot lava tube to rescue a tiny water bear that does not seem to mind the heat at all.
The Cone Snail
Season 3 - Episode 3
Peso sets out to save the day when a cone snail invades the octopod and picks off the crew one by one with its dangerous harpoons.
The Artificial Reef
Season 3 - Episode 4
When an underwater storm destroys a small reef, Tweak and her crew try to convert the Gup-F into an artificial equivalent.
The Humpback Whales
Season 3 - Episode 5
When a sardine swallows the key to a treasure chest, a humpback whale helps Kwazii track it down.
The Pelicans
Season 3 - Episode 6
When a floating garbage patch endangers a flock of pelicans and other sea creatures, the Octonauts and the birds work together to clean it u...
The Sea Pigs
Season 3 - Episode 7
The Octonauts must stop a huge herd of sea pigs before they march blindly into the Mariana Trench - where there will be no access to food. B...
The Yeti Crab
Season 3 - Episode 8
As Tweak tests the Gup-X deep down in the Midnight Zone, a yeti crab cuts a vital electrical wire in the ship and cuts off all power, endang...
The Barracudas
Season 3 - Episode 9
Shellington and the Vegimals' mission to replant a mangrove forest is put in peril by a school of toothy barracudas.
The Duck-Billed Platypus
Season 3 - Episode 10
While rescuing river creatures after a storm, the Octonauts find a strange egg and come under attack by stinging platypuses.
The Sea Skaters
Season 3 - Episode 11
When Kwazii gets lost at sea aboard the tiny octo-ski, he meets a flotilla of even tinier sea skaters - the only insects who live on the oce...
The Mudskippers
Season 3 - Episode 12
The Octonauts attempt to keep the peace amongst a trio of mudskippers whose home has been flooded.
The Harbour Seal
Season 3 - Episode 13
When Peso's patient, a remora fish, mysteriously disappears, the Octonauts enlist a unique undersea detective - a harbour seal.
The Lion's Mane Jellyfish
Season 3 - Episode 14
A lion's mane jellyfish gets its long and stingy tentacles tangled in the bubble engine, unintentionally flooding the Octopod and causing ha...
The Red Rock Crabs
Season 3 - Episode 15
When Shellington and the crew try to gather some skittish crabs who have drifted away from home, they get help from some old friends.
The Sea Sponge
Season 3 - Episode 16
A sea sponge that houses other sea creatures in its pores suffers from a mysterious illness and Peso must figure out the cause.
The Immortal Jellyfish
Season 3 - Episode 17
Shellington and the Octonauts try to track an unusual creature: a jellyfish that can transform from old to young repeatedly - and live forev...
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 endange...
The Hammerhead Sharks
Season 3 - Episode 19
The Octonauts meet some hammerheaded sharks, however, they can't sleep too well because Shellington and Professor Inkling have been arguing ...
The Loggerhead Sea Turtle
Season 3 - Episode 20
After an undersea tremor separates the Gup-X and its crew, Barnacles seeks guidance from a mysterious sea turtle.