Hino Tetsu was once the leader of the most feared motorcycle gang in the Kanto area. Now, Tetsu is a middle-aged man who is looked down upon by his rebellious son Shuhei. One day, Tetsu and his old biker gang gather together again after the daughter of a member is assaulted. Tetsu, worried about his day to day life, nevertheless regains the passion from his biker days. Tetsu then finds out that Igarashi Ken is the man behind the attack. Ken has had a grudge against Tetsu for a long time.