Black Dragon thief substitute

Zhou Degen switched identities with Cheng Hang, the leader of a robbery gang, in an accidental car accident, and was mistakenly identified by the police as the criminal suspect Cheng Hang. The day before the court session, the police chief discovered that Cheng Hang was not himself. On the other hand, Cheng Hang's men extorted Cheng Hang's wife in order to get her stolen goods. The two men began a struggle with Cheng Hang's men in order to save Cheng's wife.