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After overcoming a mutiny at sea Polly and the gang continue on to the south sea Island to find "Fearo the Ferocious". Upon arriving at the Island Underdog saves the day as he overcomes ferocious dinosaurs.
First Air Date : Oct 03, 1964
Last Air date : Dec 10, 1966
Episode : 129 Episode
Season : 3 Season
Runtime: 10:30 minutes
Studio: NBC
Country:
Crew:
