A powerful global cabal wants adventurer Brett Russell to retrieve a superweapon stolen by the scientist who built it. To entice him to travel underneath one of the most dangerous volcanoes on Earth to find the scientist, this shadowy organization will pay him the only thing he cares about: information that will allow him to avenge his family's murder. But before he can get paid, he and his team must enter an underground hellscape of killer plants, giant insects, terrifying dinosaurs, and an army of other predators never previously seen by man. At the end of this journey awaits a revelation that could alter the fate of mankind ... if they can make it back from this horrifying found world.