When Tiger Wong (Nicholas Tse, New Police Story) uses his special Dragon Slaying Kick to protect an innocent family from being tormented by Triads, he unwittingly takes a large gold medallion from one of his assailants. He doesn't know that it's the Lousha Death Plaque, a powerful talisman belonging to one of the biggest criminal organisations in Asia. A marked man, Tiger is ambushed by a vicious gang, but is protected by a stranger with incredible martial arts skills. This man is Dragon (Donnie Yen, Hero), who is Tiger's estranged step-brother. Together with Turbo (Shawn Yue, Infernal affairs) - an expert in nunchakus - these three street fighters must put aside their differences and stand alone against the might of the Lousha Gate.