THE SISTER STREET FIGHTER COLLECTION presents all four films in the Japanese martial arts series starring Etsuko Shihomi as a female karate expert. In SISTER STREET FIGHTER (1974), Shihomi travels to Hong Kong to search for her missing brother, who was working undercover for the police. In SISTER STREET FIGHTER: HANGING BY A THREAD (1974), Shihomi traces an heiress's disappearance to a diamond smuggling ring. In RETURN OF THE SISTER STREET FIGHTER (1975), she sets out to rescue a childhood friend kidnapped by gangsters. And in SISTER STREET FIGHTER: FIFTH LEVEL FIST (1976), she infiltrates a notorious drug ring.