The Xinglong caravan was escorting Jinsha, but on the way the caravan was robbed by knife-wielding bandits. All the bandits were killed except Zhang Xiaonian, who was injured. Zhang Xiaonian committed himself to the Yizhuang and teamed up with Mr. Huang to track down the knife-wielding bandits. After several investigations, they found out their true identities and arrested them while they were transporting the stolen goods.