In Brazil, Akemi finds out that she's the heiress to the Yakuza empire. Just after that, her destiny enters a spiral of violence and mystery, where a gaijin (foreigner) who's been protecting her all this time, Shirô, may have been actually sent to kill her.
A gang of young dirt bikers on a ride across an isolated region of Brazil find themselves being hunted by a machete wielding band of motorcyclists intent on killing them all.
