冷战结束了，但一场真正的战斗即又开始。在距华盛顿DC５０哩处有一个被掏空的山，里面储藏各种高科技和食物以防核战爆发。但冷战后，这个基地面临被关闭的命运。它的发明人勒博士不愿眼见自己的杰作被关闭，因而威胁要将美国境内所有的飞弹发射。戴林将军用尽各种方法－特种部队、苏俄的电脑专家，最后发现更糟的是，勒博士还发明了个一半人半机…

Scientists at a secret underground complex have found a way to travel to another dimension. Three dimension-travellers are the first to go through the gate - but are soon attacked by something that interrupts the communication with Earth. This horrible something uses the gate to travel back to the underground complex. …