OnherfinalcombatmissionacrosstheruggedmountainsofAfghanistan,RoyalAirForcefighterpilotLtKateSinclair’sjetisshotdownoveroneofthemostdangerousrebelstrongholdsWheninsurgentscomeafterheratthecrashsite,shefindsrefugeinalongsinceabandonedundergroundbunkerAftertrackingSinclairintothedepthsofthebunker,theinsurgentsaccidentallyawakenamanmadedeadlybiologicalweaponknownastheRavagershalfhuman,halfalienandhungryforhumanfleshTerrified,shewatchesthecreaturesripapartthemenpursuingherSinclairbarelyescapesandispickedupbyaUSarmypatrolsenttofindherMajorRoyFinch,commanderofthelocalUSarmyoutpost‘FortApache’,andhisragtagsquadofbravesoldiershaveadifficulttimebelievingmutantmonstershavebeenkepthiddeninthesemountainsUnawarethatshehasbeentrackedtotheirbase,dozensoftheviciouscreaturesarealreadyswarmingtowardsthem