Three O'clock in the Morning in a Big City

Li Mansei is a martial-arts champion turned undercover agent. When he is captured by a drug lord, his sister Li Koryu turns to his former martial-arts school, including the powerful Sonny Kawasaka, for help in the inevitable battle royale.

Jeff, a young delinquent, is enrolled by his father in a kenpo school, in the hopes of teaching the boy some self-discipline. Years later, Jeff's mentor, Kim, is being threatened by one of the Korean mafia families. Jeff tries to help his old friend, but is too late to prevent Kim's death at the hands of an unknown hitman. Vowing revenge, Jeff takes on all of the families, using his martial arts skills to find the man who killed his friend.

Long is a Taiwanese killer known for his sword skills. After Long fails a Tokyo mission, he moves to a small town where no one knows about him.

When his aging mob boss is whacked, Charlie Swift, a loyal friend and hired gun, will stop at nothing to destroy the upcoming crew that took him out.

A police investigator cracks down on yakuza business, but once he realizes the police are in negotiations with certain factions, he sides with his own syndicate of choice.