即将退休的中情局精英特工(布鲁斯·威利斯饰)在执行最后一次外勤任务时，被暴徒绑架，远在布拉格任职中情局内勤的儿子哈里得知后，发现父亲的绑架可能跟中情局神秘的终极骇客工具"秃鹰"有关，在申请参与行动被拒绝后，在有限的线索面前，哈里该如何解救自己的父亲并且拯救世界.... JohnnyDowstrugglestomakealivingathissmalltowngasstationbychargingmotoriststoseetheelectricguitarusedbyhislatefatheraone-hit,rockandrollwonder.Legendhasittheguitarwascarvedintheshapeofadragon’sheadandmadeinpartfromanancientspearhisfatherfoundinthecraterofashootingstar.WhenJohnny’sfriendEddiestumblesupontheotherhalfofthespearhereleasesanancientdemonhungryforpoweranddestruction.MikaabeautifulChinesewarriorwhoholdsthesecrettofightingEddieandhisarmyofkungfu,sugar-cravingwarriorsrevealstoJohnnythattheonlywaytostoptheevilspiritistousethefirsthalfofthespear-thedragononJohnny’sguitar!TogetherJohnnyandMikasetouttofightEddieandhisarmy,reunitethetwohalvesofthespear,restorepeacetothetownand-ofcourse-savetheworld! 
