There was a wealth of fast-moving gritty exploitation films made during the 60's and 70's in Japan that no-one bothered to translate into English.This is one of them. Tetsuya Watari is a big game hunter who returns to Japan after a hunting trip in Alaska to find his younger sister has killed herself after being raped by a biker gang.It's revenge time. This Nikkatsu action movie is satisfyingly violent and has a great theme tune. I saw it on early evening Japanese tv,my wife translated.