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The oceans are leaking through a fissure in the ocean floor. A con-man named Muldoon agrees to guide Mark through the fissure to investigate. However, Mark is unaware either that giants inhabit the other side of the fissure or that Muldoon has already stolen gold from one of them.
First Air Date : Sep 22, 1977
Last Air date : Jun 06, 1978
Episode : 13 Episode
Season : 1 Season
Runtime: 90 minutes
Studio: NBC
Country: United States of America
