Mark Cheng plays a police officer who disowns his alcoholic brother when he finds employment with one of the gangs – first training dogs for illegal dog fights, then as a bodyguard. His brother is actually working as an undercover cop. In the same gang another bodyguard “Chang” is infatuated with the boss’s daughter. Although he is spared when he attempts to assault her, he later returns to take vengeance on them.
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