简介：JohnnyDowstrugglestomakealivingathissmalltowngasstationbychargingmotoriststoseetheelectricguitarusedbyhislatefatheraone-hit,rockandrollwonder.Legendhasittheguitarwascarvedintheshapeofadragonsheadandmadeinpartfromanancientspearhisfatherfoundinthecraterofashootingstar.WhenJohnnysfriendEddiestumblesupontheotherhalfofthespearhereleasesanancientdemonhungryforpoweranddestruction.MikaabeautifulChinesewarriorwhoholdsthesecrettofightingEddieandhisarmyofkungfu,sugar-cravingwarriorsrevealstoJohnnythattheonlywaytostoptheevilspiritistousethefirsthalfofthespear-thedragononJohnnysguitar!TogetherJohnnyandMikasetouttofightEddieandhisarmy,reunitethetwohalvesofthespear,restorepeacetothetownand-ofcourse-savetheworld!