Polar shift: It is the name for a phenomenon that may have occurred many times in the past. At the very least, it disorients birds and animals and damages electrical equipment. At its worst, it causes massive eruptions, earthquakes, and climatic changes. At its very worst, it would mean the obliteration of all living matter, and if that happens-exit Earth. Austin, Zavala, and the rest of the NUMA Special Assignments Team certainly have faced dire situations before, but never have they encountered anything like this. This time . . . even they may be too late.