A Hong Kong cop named Kit busts a major gangster only to find his cover blown and his main witness gone. The gangster, in retaliation, has him kidnapped and put in a Thai jail with a false criminal identity. A lowly prison guard Chai with extraordinary fighting skills guards kit and prevents his escape from prison. The prison guard’s daughter suffers from a rare form of leukemia and Kit is the only donor who can save her. The prison guard discovers Kit’s real identity and helps him to escape in return for his agreeing to save his daughter. Together, Kit and Chai must face the gangster and his minions and take them down.
A crew of seasoned criminals led by the notorious Nam, armed with high-powered weapons, pulls off another smooth and violent armored car heist in broad daylight in a crowded street. Whoever tries to get in their way, they will show no mercy. This puts the police force to shame and humiliation. A hardboiled senior police inspector Lui, hot on the trails of Nam and his tight crew, determines to put an end to this madness that causes the lives of innocent people. But he soon comes face to face with the cruel reality that the usual police tactics are too futile to send these armed thieves behind bars. Extreme crime requires extreme justice, even if it means crossing his moral line. Tou, an ex-con desperate to leave his criminal past behind, volunteers to be Lui’s snitch in exchange for a fresh start with her girlfriend Bing. But little does he know what hellish situation he’s getting himself into.