A massive earthquake strikes off mainland Japan causing the temperature of the Pacific Ocean to rise meteorically, leading to a massive storm to hit Tokyo and for it to be inundated with water. Later the largest typhoon in recorded Japanese history hits Tokyo. The Tokyo Fire Department and its team of crack rescuers swing into action, and shortly after they do, a distress call arises from an underground subway station - with repeated indications of the rescue code, 252 252, and the exclamation We Have Survivors. It soon becomes apparent that the local rescue squad must attempt to save the survivors, doing so at the expense of their own lives and safety.