JohnnyDowstrugglestomakealivingathissmalltowngasstationbychargingmotoriststoseetheelectricguitarusedbyhislatefatheraone-hit,rockandrollwonder.Legendhasittheguitarwascarvedintheshapeofadragon’sheadandmadeinpartfromanancientspearhisfatherfoundinthecraterofashootingstar.WhenJohnny’sfriendEddiestumblesupontheotherhalfofthespearhereleasesanancientdemonhungryforpoweranddestruction.MikaabeautifulChinesewarriorwhoholdsthesecrettofightingEddieandhisarmyofkungfu,sugar-cravingwarriorsrevealstoJohnnythattheonlywaytostoptheevilspiritistousethefirsthalfofthespear-thedragononJohnny’sguitar!TogetherJohnnyandMikasetouttofightEddieandhisarmy,reunitethetwohalvesofthespear,restorepeacetothetownand-ofcourse-savetheworld!