Invisible Target (2007)
An armoured truck carrying $100 million of cash is attacked by a criminal gang which calls themselves the "Ronin Gang" with explosives as it stops at a traffic junction in front of a jewellery shop. All the security guards were shot dead except one, while responding police officers suffered serious casaulties under the gunfire of the heavily armed gang members. The explosions also killed several civilians, including a lady in the shop. Six months later, the same gang reappears in Hong Kong, injuring a group of policemen, two critically, during a spot check. The dead woman in the jewellery shop was Crime Investigation Department detective Chan Chun's fiancee, while the injured policemen are led by Trainee Inspector Fong Yik-wei. Both officers vow revenge on the criminal gang.Wai King-ho is a rookie cop whose older brother, Wai King-tat, also a police officer, has been missing for an extended period. Deeply upset by police allegations that his brother has become a part of the criminal gang while infiltrating as an undercover, he was suspended from duty due to this connections with his now-wanted brother, and later confronted by both Chan and Fong who demand his brother's whereabouts. They form an alliance after Wai is rescued by Chan and Fong in a fight at a night club. Little Tige