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.

Koryu heads to Yokohama in search of a woman named Birei, kidnapped by diamond smugglers who move their hot rocks by surgically implanting them into the nubile buttocks of Chinese prostitutes. Koryu's older sister, working as a jewelry designer, is secretly, if unhappily, involved with the gangsters.

Martial artist Takuma Tsurugi returns to take on a Yakuza family that may be embezzling money from charities to finance their own operations. Both the police and the Yakuza find themselves battling Tsurugi, but Tsurugi's fight ultimately is with the mob, and he concentrates on them.

A karate master played by Sonny Chiba is attacked and left crippled and blinded in one eye. He trains his daughter with the intention of her avenging not only himself but a murdered friend.

It is about the life of Ueshiba - the founder of aikido. We can see how he decided to develop aikido and how he did it. We can see why he developed aikido and where he has learned martial arts.

Three men, the skilled ninja Ryuichi Koga, the deadly assassin and former drug detective Takeshi Hayato, and the criminal mastermind Ichiro Sakura work together to take out an infamous drug dealer.

Sakata protects a little boy while coping with rival gangs.