Baiyun City Criminal Investigation Team No. 4
Modern urban drug investigation, HE
Su Huai, a newcomer from the Baiyun City Public Security Bureau, was handed over by the director to Huo Ling.
Huo Ling: Five years of working in the Baiyun City Public Security Bureau is not a long time, but in just five years, Su Yu has become a first-class superintendent with his excellent investigative skills and excellent assessment results.
Six years later, Su Huai was asked to work as an undercover agent. Huo Ling tried his best to stop it, but to no avail, Su Huai went anyway.
Su Huai returns 4 years later
Purpose: justice