Mr Wong is a third generation fisherman in Hong Kong, struggling to keep this tradition alive. One night, he decides to leave the crowded waters of the harbour, and fish in calmer waters. His luck changes when he catches something that does not belong to this world.

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.

In China to donate his kidney to his dying niece, former black-ops agent Deacon awakes the day before the operation to find he is the latest victim of organ theft. Stitched up and pissed-off, Deacon descends from his opulent hotel in search of his stolen kidney and carves a blood-soaked path through the darkest corners of the city. The clock is ticking for his niece and with each step he loses blood.

In feudal China, a blacksmith who makes weapons for a small village is put in the position where he must defend himself and his fellow villagers.