Thefilmtellsthestoryofsinglemother "Kara"(ElizabethRoberts)whomovesfromNewYorktothequietcountrysidewithhertwochildrenforajobopportunityshecan'taffordtoturndown.Thefamilymovesintotheirhumblenewguesthouse.Karabeginsherworkasapriva tenurseto"Walter,"(BruceDavison)amanstrickenwithmultiplesclerosisandanappraiserofrareantiquitieswithasecretivepast.Herteenageson,Jesse,(ArmanDarbo)isunhappyaboutthismostofall.Losinghisfriendsandmovingtothemiddleofnowherehasn'tm adehisjoboflookingafterhislittlesister,"Cambria,"(ChloePerrin)anyeasier.Doomprecedesthem."Akiba,"(TrevaEtienne)ashadyinternationalassociateofWalter's,bringswithhimamysteriousrelicofancientorigin."Kara"encountersruninwithalocals heriffplayedbygenreveteranactorDeniseCrosby.Alltooquicklytheydiscoverthereliccontainsmorethanjustlegends.Inside,waitsaterrifyingcreaturebornofancientdarknessandpureinstinct…apre-historiccaveSpiderunlikethemodernworldhaseverseen.