Title from sell sheet

The Octonauts are a team of adventurers who explore the world's oceans, rescue aquatic creatures, and protect their habitats - from the bustling eco-system along the Amazon River to the deepest depths of the Mariana Trench. Deploying a set of aquatic vehicles, Captain Barnacles, daredevil ex-pirate, Kwazii, medic Peso and the rest of the crew embark on missions around the globe before returning safely to their home base, the Octopod. In this season set, encounter all types of creatures from Hippos and Tree Lobsters to Tiger Sharks and Poison Dart Frogs! The adventures don't end there! Join the Octonauts as they dive into the Midnight Zone, journey to the Amazon, and explore Antarctica! Come aboard and join the Octonauts on 23 exciting adventures!

Wide screen

Originally broadcast as single episodes of a television program in 2015

Ross Breen, Keith Wickham, Jo Wyatt, Teresa Gallagher

DVD, wide screen

Disc 1.

Walrus Pups -- Mantis shrimp -- Poison dart frogs -- Hidden lake -- Baby sea trutles -- Octopod mystery -- Tree lobsters -- Convict fish -- Great swamp search -- Crawfish -- Surfing snails -- Baby gator -- Bomber worms --

Disc 2.

Flamingos -- Operation cooperation -- Kelp monster mystery -- Hippos -- Yello-bellied sea snakes -- Loneliest whale -- Spinner dolphins -- Coelacanth -- Operation deep freeze -- Emperor penguins -- Tiger shark -- Cocunut crisis -- Sunfish