Out of the Earth

Something else has been living beneath the Earth. Now, it's their time to rule...
The Yellowstone supervolcano has begun to erupt, sending North America into chaos and the rest of the world into a panic. People are dangerous and desperate, knowing this will plunge the continent, and the world, into perpetual winter.
Until they realize that the eruption is the least of their worries...
Out of the massive chasm comes more than ash and lava. Giant monsters emerge, bent on destroying everything in sight.
Federal Marshal Lu Morgan and a ragtag group of survivors and soldiers must fight hard to stay alive and beat back the invasion of massive creatures.
It is a race against time, and a race for survival, as all involved struggle to find answers as to where the monsters came from and how to stop them.