A former delinquent happens to encounter a lonely 10-year-old girl who looks like she is going to be killed by a gangster. He saves her by reflex, but does not get an answer when he asks what is going on. Because of that, he is mysteriously attacked time and again. With his own life in sudden danger, he calls on six friends from his high school days as a delinquent. These enthusiastic, single-minded men band together to protect her to the end.