Even if you are lost in the darkness, you should never give up looking for the light! On a certain island in the Pacific Ocean, an illegal human trafficking organization with powerful hands and eyes kidnaps and defrauds Chinese people overseas. In order to save his adopted daughter, the usually taciturn Lao Chen does not hesitate to reveal his secret past that he has concealed for fifteen years, and joins hands with the local young policeman A Chan to fight against the huge criminal group and the evil forces, and start a life-and-death battle.