Chen Jiehui received a very dangerous task more than a year ago. He had to penetrate into a drug-making and trafficking gang, gain the trust of the gang leader, and destroy the entire drug-making and trafficking network. The leaders of this drug-making and trafficking gang were a pair of brothers and sisters, Lin Yang and Lin Yu. Lin Yu was the boss of the drug trafficking group, and he behaved in front of his younger brothers. His elder brother appears to be very loyal, but in fact he is cautious and suspicious at heart. His younger sister Lin Yu is young and beautiful. She has been dependent on her brother since she was a child. It doesn't matter what her brother does, she just works with you anyway. Undercover Ah Hui behaves calmly and capable. As soon as he goes back and forth, he is valued by the gang boss Lin Yang, and Lin Yu falls in love with Ah Hui. But there is another person in Ah Hui's heart. This person is a drug-addicted girl named Shishi who Ah Hui has been taking care of, so the situation suddenly becomes very complicated. For Ah Hui, accepting Lin Yu's olive branch to him will be better help in completing the task, but he feels that it is a complete deception of feelings, so he is very conflicted about this. At that time, there were also problems within the criminal gang. Lin Yang had known for a long time that if he continued to do what he did, he would lose his head sooner or later, so he often wanted to wash his hands in a golden basin. The second-in-command in the gang, Shen Kun, was scheming and ruthless. He kept watching, "The boss quits, then I will do it, and I will take his place. This will bring a storm to the undercover."
