All
2010
Kids & Family
Little Learners
The Mariana Trench Adventure
Season 3, Episode 12
: Tweak has designed a brand-new Deep Sea Station to study the deepest, darkest reaches of the ocean, but the Octonauts face multiple challenges.
About the Series
The Octonauts
The Octonauts are a team of adventurers who explore the world's oceans, rescue aquatic creatures and protect their habitats.
1. The Water Bears / The Barracudas
The Octonauts go into a red-hot lava tube to rescue a water bear! Shellington an...
2. The Cone Snails / The Artificial Reef
Only Peso can save the day when a cone snail invades the Octopod. An underwater ...
3. The Humpback Whales / The Duck-billed Platypus
A humpback whale helps Kwazii track down the key to a treasure chest. Then, the ...
4. The Mudskippers / The Immortal Jellyfish
The Octonauts attempt to keep the peace amongst a trio of mudskippers. Then, She...
5. The Sea Skaters / The Siphonophore
Kwazii gets lost at sea and meets a flotilla of tiny sea skaters. Kwazii and Das...
6. The Urchin Invasion / The Lion's Mane Jellyfish
The Octonauts visit Shellington's sister, Pearl, and her newborn son Periwinkle....
7. The Pelicans / The Hammerhead Sharks
The Octonauts and the birds work together to clean up a floating garbage patch. ...
8. The Red Rock Crabs / The Sea Pigs
Shellington and the crew try to gather some skittish crabs. The Octonauts must s...
9. The Sea Sponge / The Loggerhead Sea Turtle
A sea sponge suffers from a mysterious illness. An underwater tremor separates t...
10. The Harbor Seal / The Yeti Crabs
The Octonauts enlist a unique undersea detective when Peso's patient mysteriousl...
11. The Great Arctic Adventure
The Octonauts take a vacation, and Peso accompanies Barnacles to help his sister...
12. The Mariana Trench Adventure
Tweak has designed a brand-new Deep Sea Station to study the deepest, darkest re...
13. The Over Under Adventure
The Octonauts mission to explore Antarctica becomes a desperate rescue as a grou...
