Octonauts — Season 4

E01 Octonauts and the Poison Dart Frogs 23 Sep 2015 E02 Octonauts and the Hidden Lake 24 Sep 2015 E03 Octonauts and the Octopod Mystery 25 Sep 2015 E04 Octonauts and the Baby Sea Turtles 28 Sep 2015 E05 Octonauts and the Walrus Pups 29 Sep 2015 E06 Octonauts and the Mantis Shrimp 30 Sep 2015 E07 Octonauts and the Loneliest Whale 01 Oct 2015 E08 Octonauts and the Tree Lobsters 02 Oct 2015 E09 Octonauts and the Convict Fish 14 Dec 2015 E10 Octonauts and the Emperor Penguins 16 Dec 2015 E11 Octonauts and the Crawfish 03 Dec 2016 E12 Octonauts and the Flamingos 04 Dec 2016 E13 Octonauts and the Tiger Shark 27 May 2017 E14 Octonauts and the Sunfish 28 May 2017 E15 Octonauts and the Coelacanth 29 May 2017 E16 Octonauts and the Surfing Snails 06 Sep 2017 E17 Octonauts and the Yellow Bellied Sea Snakes 13 Sep 2017 E18 Octonauts and the Hippos 20 Sep 2017 E19 Octonauts and Operation Cooperation 27 Sep 2017 E20 Octonauts and the Bomber Worms 23 Oct 2017 E21 Octonauts and the Kelp Monster Mystery 24 Oct 2017 E22 Octonauts and the Coconut Crisis 25 Oct 2017 E23 Octonauts and the Baby Gator 26 Oct 2017 E24 Octonauts and the Spinner Dolphins 27 Oct 2017