Another underground facility and another monster on the prowl and yet another movie where George Kennedy visibly looks like a man who is wondering where it all went wrong! A movie about a distant future where monsters roam the surface of the earth while the last of humanity lives in bunkers, bunkers with air ducts large enough to accommodate a monster when a woman gives birth to it WITHIN! It also features Butch Stevens! Who is Butch Stevens? Why, he is the hero's dog and yes, he is credited in the title as Butch Stevens!