Fei Tong (Lin Xue), a member of the Serious Crime Unit, is addicted to gambling and owes usury. He is chased by the moneylender Chen Yaoxiong (Lin Jiadong) all day long. Fei Tong was forced to steal the stolen money in the police station. He stole the stolen money but still couldn't fill the debt hole, so he had to hide in a small hotel to avoid Ah Xiong. PTU's Sergeant Ah Sen (Simon Yam) learned that Fei Tong had stolen the stolen money privately, and tried every means to protect and help his friends, but his ability was limited after all. By chance, Fei Tong met four Chaozhou fellow villagers next door, and was appreciated by the other party for his experience and skills as a professional driver. Unexpectedly, these four people were actually gangsters from the mainland. They invited Fei Tong to join them. Fei Tong, confused by money and morality, hesitated. Can the lost police find the way back...