SuburbanAmericagonehaywire.Inthemidstofaserialabductor/killer#39;srampage,abeautifulyoungteen,RileyLawson,goesmissing.Whenherdesperateparents,WillandKate,arecontactedbyherkidnapper,aninsufferableFBISpecialAgenttakeschargeofthecase.But,fromdeepwithinthepsychopathicsubterraneanworldcreatedbyOtis,Rileyturnsthetablesonhertormentor,managestoescapeandtocontactherparents.And,fedupwiththetragi-icinabilityoftheFBItofindtheirgirl,Will,Kate,andRiley#39;sbrother,Reeddecidetotakematters-andjustice-intotheirownhands.ButwhenOtis#39;sbrother,Elmo,showsupunexpectedly,theLawsonsfindthemselvesmiredinunusualandmacabreconsequencesofvigilantism.