Synopsis

From across the planet, beyond the churning expanse of the Boiling Sea, Dorno and Gleep detected the approach of the Snake Riders, poised for attack. They alerted the others, and the Herculoids drove them back towards their subterranean lairs. However, in the chaos, Zara was captured. To rescue her, Zok transformed himself into one of the Riders’ colossal serpent forms, while Dorno assumed the guise of a Snake Rider himself. Under cover of these disguises, they infiltrated the caverns and freed