简介：Legalandillegalcriminality.AnAmericantouristwithaboatisrobbedbyagangofteenagerboys,assistedbytheleader'ssister.Butsoonafterwardshejumpstothevictim'sboattoescapeherbrother'sincestuousjealousy.Thecoupleflytogetherandishuntedbytheentiregang.Bothhappentoenterhigh-classifiedmilitaryterritory.Theremightbeathirdandatomicworldwar,afterwhichnoordinarymancouldsurvive.Butnowandthenchildrenarebornwhoare"naturally"radio-activeandhavecoldblood.Theymightsurviveinthepost-warworldandcarryonmankind.TheyarefetchedandbroughttoanundergroundconstructionwheretheyareeducatedbyTV.Theyaretoldthattheyareonaspaceshipmovingtowardtheearth,whichtheyshouldeventuallycolonize.Thismilitaryprojectseemstobeafailurebecauseofahighmortalityamongthechildren.-Themilitarysoonfindsthegang...…