
In an effort to find an economic means of purifying salt water, a joint U.S.-Japanese military command is set up on an isolated Japanese island where an unusual salt water lake is situated. However, their purifying experiments arouse the prehistoric monster Obaki from hibernation at the lake's bottom, and it proceeds to attack Japan. Although made by a U.S. independent film company, this film was based on a Japanese Toho monster film of 1958, "Daikaiju Varan", from which all of the monster effects scenes and a few incidental dramatic shots were edited into it.

as Cmdr. James Bradley

as Anna

as Capt. Kishi

as Matsu, the boy

as Dr. Sugimoto

as Paul Isoh

as Shidori Isoh

as Paul's Friend

as Dr. Fujimora

as Dr. Majima

as Military Officer Katsumoto

as Secretary of Defense

as Ichiro

as Captain of Uranami

as Yutaka Wada

as Village High Priest

as Military Officer Kusama

as Ken's Mom

as Issaku

as Horiguchi

as Jiro

as Sankichi

as Fisherman

as Ken

as Cameraman

as Fisherman

as Varan

as Varan

as Soldier