Nine powerful families referred to as the "Old Nine Gates" or the "Mystic Nine Clan" guard the town of Changsha during the era of the republic. Zhang Qi Shan/Fo Ye who is the leader of the nine gates, investigates a mysterious train that ends up at his Changsha station that leads to an equally mysterious mine. In order to solve the mystery, he entrusts the help of Qi Tie Zui/Ba Ye and
