The Big One, as it was called, flattened all the major cities and brought civilization to a standstill, killing millions. Scientists learned that the destruction was created by Dark Matter, from inside our Earth! President Jim Harkness and other world leaders form a coalition of Special Forces...Hollow Earth Special Forces...and send them on a discovered path in Tibet that leads to that civilization. They stop communicating with the surface world. Presumed dead, a second team is heading down...through Mount Shasta, where a secret cult has been going through a secret entrance that leads to the center of the Earth. The Second Team must face the fear that they won't return either but refuse to give into that fear as they discover the inside of the Earth is not what they thought at all. A fantastic tale of courage, love and friendship among the Hollow Earth Special Forces as they face their worst fears on their way to trying to save the world from further destruction.