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.

Cmdr. James Bradley

Anna

Capt. Kishi

Matsu, the boy

Dr. Sugimoto

Paul Isoh

Shidori Isoh

Dr. Fujimora

Dr. Majima

Military Officer Katsumoto

Secretary of Defense

Ichiro

Captain of Uranami

Yutaka Wada

Military Officer Kusama

Ken's Mom
December 7, 1962

Cmdr. James Bradley

Anna

Capt. Kishi

Matsu, the boy

Dr. Sugimoto

Paul Isoh

Shidori Isoh

Dr. Fujimora

Dr. Majima

Military Officer Katsumoto

Secretary of Defense

Ichiro

Captain of Uranami

Yutaka Wada

Military Officer Kusama

Ken's Mom
