二次世界大战期间，拥有“马来之虎”称号的日本南方作战总司令山下奉文曾在东南亚叱咤风云，战时他在当地大肆搜刮钱财。随着日本投降，始终下落不明的“山下黄金”也成为寻宝者趋之若鹜的对象。这一天，某企业总裁的公子哥沃伦带着日本学者理绘（水野美纪 饰）、前英国军人斯坦利（Sam Hazeldine 饰）登陆印尼某小岛。此前他曾从苏门答腊搞到一张地图，地图上的标示令他确信“山下黄金”正藏在这座岛上。虽然有当地雇佣军的保护，可是他们突然遭到一伙不明身份军人的袭击。 　　仓皇之中，这群探险者躲进日军修筑的基地，而这里便是731部队的卫星控制中心。在深锁长达半个世纪的地下迷宫，等待这群人的将是前所未有的恐怖……

A crook decides to bump off members of his inept crew and blame their deaths on a legendary sea creature. What he doesn't know is that the creature is real.

A ship's captain in the South Seas battles a villainous pearl trader who uses island natives as slaves for his business.

Bleeding to death under a dead tree in the middle of the prairie, he lies there, old Sam, when the gunslinger Tom finds him. In his final words, he talks about the legendary gold of the Iowa Indians that he had actually seen in the blue mountains – from which no pale face has yet returned alive. When two Indians appear on the horizon, Tom searches for space – and so the Iowas bring the corpse of Sam, popular for his stomach-turning firewater, to his son Bill. It is assumed that a bear killed him, but doubts soon arise about this theory.