The story revolves around a group of aliens who reside on the ocean floor, living in peace until they are forced to destroy humanity due to pollution disrupting their ecosystem. In response, scientists race to prevent an apocalypse. This book was a massive hit in Germany and other European countries, outselling Al Gore’s "An Inconvenient Truth" in terms of sales. It has become the latest addition to a growing number of films based on the philosophy that there will be a payback for mankind’s mistreatment of the planet.