Nick Chen (Chow) is one of the most decorated police officers in New York City. But Chen has used his close ties with a group of Chinese "businessmen" known as the Triads to rise through the ranks. As feud erupts between the Triads and the newly arrived and brutally violent Fukienese Dragons, idealistic cop Danny Wallace (Wahlberg), unaware of how power and influence have compromised his superiors, must now reassess his loyalties in this hard-hitting tale of deception, violence and betrayal in New York City's Chinatown.