- Yellow-Bellied Sea Snakes: When a mass of poisonous sea snakes get stranded on a beach, Peso and the Octonauts must somehow get them all back into the ocean. Loneliest Whale: The Octonauts follow a strange song to find a lonely humpback whale, who is alone because he doesn't sound like the other whales!
- First Aired: November 12, 2016 - 24 Minutes Runtime
Watch The Octonauts Season 4 Episode 10 - Yellow-Bellied Sea Snakes / Loneliest Whale
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The Octonauts, Season 4 Episode 10, is available to watch free on DisneyNOW and stream on Disney Junior. You can also stream, download, buy, rent The Octonauts on demand at Netflix, Amazon, Google Play, Apple TV online.