Octonauts and the Hidden Lake (S04E02)

S04E01 Octonauts and the Poison Dart Frogs S04E02 Octonauts and the Hidden Lake S04E03 Octonauts and the Octopod Mystery S04E04 Octonauts and the Baby Sea Turtles S04E05 Octonauts and the Walrus Pups S04E06 Octonauts and the Mantis Shrimp S04E07 Octonauts and the Loneliest Whale S04E08 Octonauts and the Tree Lobsters S04E09 Octonauts and the Convict Fish S04E10 Octonauts and the Emperor Penguins S04E11 Octonauts and the Crawfish S04E12 Octonauts and the Flamingos S04E13 Octonauts and the Tiger Shark S04E14 Octonauts and the Sunfish S04E15 Octonauts and the Coelacanth S04E16 Octonauts and the Surfing Snails S04E17 Octonauts and the Yellow Bellied Sea Snakes S04E18 Octonauts and the Hippos S04E19 Octonauts and Operation Cooperation S04E20 Octonauts and the Bomber Worms S04E21 Octonauts and the Kelp Monster Mystery S04E22 Octonauts and the Coconut Crisis S04E23 Octonauts and the Baby Gator S04E24 Octonauts and the Spinner Dolphins