In the gritty underworld of Sydney, a man linked to the criminal organization is taken into custody by Australian authorities, who then summon Inspector Fang Sing Leng from Hong Kong to interrogate him. However, just as the questioning begins, the suspect is brutally murdered, setting off a chain reaction of violence and deception as Inspector Leng and the Sydney police race against time to uncover the truth behind the assassination and bring the perpetrators to justice.