就在張晨即將結束臥底工作時，警方得知新的毒王要來了。 他們決定讓他繼續臥底抓捕新毒王。
Just as Zhang Chen is about to wrap up his work as an undercover police officer, the police learn that a new Drug King is coming. They decide for him to continue working undercover to catch the new Drug King.
