Mudskippers; Immortal Jellyfish
The Octonauts try to keep the peace among a trio of mudskippers whose home was flooded; Shellington and the Octonauts try...
The Great Christmas Rescue
The Octonauts visit Inkling's childhood home, an undersea mountain, at Christmas and become involved in local rescue efforts when a...
Urchin Invasion; Lion's Mane Jellyfish
The Octonauts visit Shellington's sister and her newborn son in the kelp forest but soon discover that the forest...
Gulper Eels; Lionfish
Hungry gulper eels threaten Inkling and Kwazii; the Octonauts use the Octopod to transport a pair of invasive lionfish back to...