Set in the 1890s in Siam, Siang is a skilled Muay Thai fighter and rocket enthusiast dedicated to reclaiming stolen water buffalo from ruthless cattle thieves who prey on impoverished Isan farmers. His journey is fueled by a personal vendetta against a tattooed man responsible for his parents' tragic deaths. As Siang battles both the raiders and his own inner demons, he uncovers a path of vengeance and redemption, challenging the injustices faced by his community along the way.