Plot: On an isolated island in Indonesia, an expedition is apparently seeking the legendary Yamashita's Gold. Out of the blue, they are attacked and seek refugee in an abandoned Japanese bunker. Soon they discover that the place was a secret laboratory during World War II where the prisoners were guinea pigs in weird experiments. Further, they are trapped inside with strong and resistant creatures created by these experiments. Will they succeed in escaping from the dead mine?
Alternative Plot: Terror awaits treasure hunters (Miki Mizuno, Sam Hazeldine, Ario Bayu) when they become trapped in an underground bunker on an Indonesian island.
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