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Episode guide

S3·E17 The Immortal Jellyfish

Core Aired March 20, 2014

Synopsis

Shellington and the Octonauts try to track an unusual creature: a jellyfish that can transform from old to young repeatedly - and live forever!

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Frequently Asked Questions

When did Season 3 Episode 17 of Octonauts air?

Season 3, Episode 17 ('The Immortal Jellyfish') originally aired on March 20, 2014.

How long is Season 3 Episode 17 ('The Immortal Jellyfish')?

The episode follows the standard broadcast runtime for Octonauts.

What happens in Octonauts Season 3 Episode 17?

Shellington and the Octonauts try to track an unusual creature: a jellyfish that can transform from old to young repeatedly - and live forever!...