The story is about an aliens that live quietly on the ocean floor until they are compelled to destroy humanity after their eco-system is disrupted by pollution. Scientists race to stave off an apocalypse. The book was a huge bestseller in Germany and other European countries. While the likes of Al Gore&#39s &quotAn Inconvenient Truth&quot trying to stir concerns about the environment, &quotThe Swarm&quot becomes the latest in a growing number of films based on the philosophy that there will be payback for mankind&#39s abuses of the planet.