Horse thief Luk Ching-Yang and his wife Liu Lu-Yian. After Luk was betrayed by his brother Kiu Hung, Lu-Yian left him. They reunite 20 years later, along with Liu Lu-Yian's adopted daughter Liu Wan-Long and the young warrior Pak Suk-Fu, in order to seek revenge.

As a crime wave sweeps through Hong Kong, the police call Jessica Yang, a rising star in the ranks, to help stop a notorious gang of thieves! What Jessica doesn't realize is that her boyfriend – recently discharged from the force – is the leader of this ruthless crime ring!