In the new century, the fight against drugs faces an unprecedented and difficult challenge! Under the deep and complex dark network, an invisible war is being waged in Hong Kong… A typhoon signal was hoisted in Hong Kong. Under the cover of the fierce wind, four tons of methamphetamine were entering Hong Kong, pending to be sold on the dark network. A cyber revelry of druggies was about to be unveiled, and a storm was brewing in the quiet Victoria Harbour. Police had to arrest the “boss” behind the scenes and nip the “drug network” in the bud in no time, which pushed their undercover intelligence to the narrow road. In the center of the storm, undercover agents, police officers, drug lords, black, white, and grey entangled.