Mad Dog

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.

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.

Brazilian-Japanese gangster Mario rescues his Chinese girlfriend Kei as she's about to be deported from Japan. Desperate to escape, he hides in Tokyo's booming Japanese-Portuguese community and seeks passage from the country from a Russian mobster. To meet his price, they hold up a bigtime drug deal between the Chinese Mafia and the local Yakuza.

Repeatedly beat to a pulp by gamblers, cops, and gangsters, lone wolf Shoji Yamanaka finally finds a home as a Muraoka family hitman and falls in love with boss Muraoka's niece. Meanwhile, the ambitions of mad dog Katsutoshi Otomo draws our series' hero, Shozo Hirono, and the other yakuza into a new round of bloodshed.

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.