Benz, his son "Cool" and nephew Ngau-Ngau are part of a team of vigilantes who rob gangsters at night and distribute the loot to the needy. However, his wife is suffering from cancer and knows nothing of their activities. Unbeknownst to all of them, Benz's stepson Lionel, a police officer, is on a deep undercover assignment as an employee of a multinational company called DOA. It is later revealed that DOA is merely the corporate front of a large criminal syndicate and is run by the ruthless Mr. Ko. Lionel, who had a camera surgically implanted onto a contact lens which he wore so the police could track the syndicate's activities and eventually nab them.