Option Zero

Ai (Cheung Ch-Lam) is a young member of the action unit operated by the Political Department of Hong Kong's Security Branch. He finds himself forced to choose between his heart and his duty when a major case causes conflicts between Ai and his girlfriend. The head of the unit, Sing (Anthony Wong) advises that romance does not mix with their line of work, and the failure of his own relationship is proof of this. Another member of the team, Carmen (Carmen Lee) has her own reasons for seeing Ai separate from his girlfriend. She is secretly in love with him. While on the trail of a ruthless illegal arms-dealing syndicate, the SB Team members must confront their most deadly threat ever. This high impact tale of bravery, passion and sacrifice is played out on the battlefield of today's political espionage... (official distributor synopsis)