An elite squad is out to solve the mystery of Emperor Huizong, gone missing following an attempt on his life. Cold Blood and Life Snatcher lead the investigation, while the feuding Emotionless and Iron Hands routinely drop by to help out.

Emotionless has left Six Doors, as has Cold Blood, who has decided to investigate the death of Lord Bu on his own. The departure of two of the four constables has effectively left Six Doors defunct. At this time, trouble begins to brew in the Imperial Palace as Emperor Huizong plans to travel incognito to the outside world. When he is almost assassinated and subsequently disappears, Cold Blood, Emotionless, Iron Hands and Life Snatcher must band together once again under Master Zhuge to save the empire from a massive conspiracy.—hery-yanto

The reputation of the Four constables survives, but since Emotionless's departure, there have been changes at the Divine Constabulary. The four rescue Zhuge Zhengwo from An Yun Shan's mountain fortress, then with the Emperor and Di armies, they attack. But An Yun Shan absorbs their power, which means the constables and their allies now face their most lethal opponent yet, a nearly invincible kung fu master who won't stop until he has absolute power.—MyAsianTV