Wisdom in "Crossing the Kanto"?

Zhu Kaishan is very clever. He wants to swallow the gold himself, then take this opportunity to kill the person (leader) who pretends to cooperate with them, and then scare Xiaojin and his mother to transport the gold from other places. I don't know exactly what to do.

Leaders are taking advantage of Zhu Kaishan, hiding the gold on themselves, making Zhu Kaishan swallow fake gold (real gold swallowed so much and died long ago), and then diverting attention, deliberately letting them give Zhu Kaishan a caesarean section and run away. Unexpectedly, they shot themselves in the foot and died instead.