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While exploring a dark and spooky cave, The Octonauts find a strange fossil of a powerful prehistoric fish... but it may be more than just a fossil!
First Air Date : Oct 04, 2010
Last Air date : May 26, 2023
Episode : 221 Episode
Season : 9 Season
Runtime: 15:14 minutes
Studio: CBeebies, Tencent Video
Cast:
Crew: