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Dorno and Gleep spot the Snake Riders, who plan an attack from halfway across the planet, across the Boiling Sea. They warn the others and the Herculoids drive them back to their caverns, but Zara gets captured. Zok disguises himself as one of the Riders' giant snakes and Dorno disguises himself as a Snake Rider and they sneak in, free Zara, and seal off the passageway leading back to the Snake Riders' home.
First Air Date : Sep 12, 1981
Last Air date : Nov 21, 1981
Episode : 66 Episode
Season : 1 Season
Runtime: 60 minutes
Studio: NBC
Country: United States of America