Samurai

S1, E6: Five-O goes into action when a Honolulu racket boss, Tokura, runs into serious difficulty with a secret Japanese society. McGarrett finds he must protect Tokura even though he is trying to convict the racket king for his underworld activities. To do this, McGarrett enlists the aid of Tokura's beautiful daughter Deedee, who is unaware of her father's double life.