The Inhumanoids: The Evil That Lies Within - Vol.1+2 , Episodes 1-5 , USA Release , Region 1 , NTSC , 

THE EARTH HAS BEEN RAVAGED BY MONSTERS WHO DISAPPEARED AS SUDDENLY AS THEY ONCE APPEARED. THE EARTH CORPS, AND ELITE GROUP OF SCIENTISTS, SETS OUT ON A SEARCH THAT LEADS THEM DEEP INTO THE BOWELS OF THE EARTH. THEY ARE FORCED TO CONFRONT THE INHUMANOIDS, WHOSE SOLE AIM IS TO DESTROY THE EARTH.