"主角们是一群在核战爆发后仍然幸存的核弹基地工作人员，虽然他们的基地很幸运的没被攻击，但对外的联络也断绝了，认为生还无望的指挥官因而意志消沉终日藉酒消愁，身为副手的男主角金麦可文生只好取而代之成为众人的意见领袖，但是一直在基地守到老死不是办法，于是众人拖着意兴阑珊的指挥官，驾驶12轮水陆装甲车Landmaster，准备横跨充满危机的北美大陆，寻找幸存的文明与栖身之地。沿途遇上辐射突变的大蝎子、会追着人死咬的大蟑螂、还有无ZF状态下四处流窜掠夺其他倖存者的武装盗匪，甚至，最后还遇上了避无可避的大海啸...
A small group of survivors at a military installation who survived World War 3 attempt to drive across the desolate wasteland to where they hope more survivors are living. Hopefully their specially built vehicles will protect them against the freakish weather mutated plant and animal life and other dangers along the way."

While searching for a small fortune of embezzled money, an ex-con, a small-time bandleader, his doting wife and a kooky drifter find themselves being followed. Their chase takes them to trailer camps, bingo halls, laundromats and ultimately, a showdown with a group of unconventional bad guys.

Late one night on a rural road in the western US, a policeman sets up a roadblock and begins stopping all traffic. When several cars and a big truck have stopped, he tells everyone why: a nuclear attack on the US appears to be underway, and since they have the truck there, their best chance at survival is to use it as a bomb shelter. Time is short and tensions in the small group quickly rise.