简介：NometeoriteshitEarth,noterroristsputtheworldindanger,noatomicwarwasstarted,butsomethingdidgowrong.ContactbetweenmosttownsonEarthhasbeensevered.Asmallring-likeareainEasternEuropestillhaselectricity,andmaybeevenlifeisbeingreportedfromtheSpace.WhatmilitaryforcesfindoutsidetheRingisshocking.Therearedeadcorpseseverywhere:instores,incars,onroads,inhospitalsandrailwaystations.WhoorwhatisdestroyingalllifeonEarth?Howlongwillthelastoutpostofmankindsurvive?