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The Mammoth Ferry's maiden voyage is interrupted by a tsunami, scattering its cargo. Olive and the Inventor devise a submarine to retrieve the items. Topics covered: submersibles, sinking, water pressure, density.
First Air Date : Jan 06, 2004
Last Air date : Jun 01, 2004
Episode : 26 Episode
Season : 1 Season
Runtime: 10:14 minutes
Studio: BBC One
Country: United Kingdom
Cast:
