In the aftermath of a major earthquake, a young girl and the captain of a submarine are rescued. It transpires the earthquake is a minor precursor to far greater devastation with the scientific community predicting that Japan will sink without trace in less than a year. As further earthquakes, tsunamis, and volcanic eruptions devastate Japan, the scientists devise a last ditch plan to save what remains of Japan by blowing holes in the disintegrating tectonic plate - a suicidal mission that will require the deployment of massive explosives deep in the earth's crust and calls upon the bravery and skill of the submarine captain.
