Octagon - hiljaiset tappajat was released in the year 1980。Octagon - hiljaiset tappajat is also called as The Octagon, The Man Without Mercy, Protector, Osmiobok, Octagon, Fureur du juste, Duelo final, A Fortaleza Secreta。

Scott's life is plagued by two kinds of flashbacks. First are the childhood memories of the rigorous training he and a friend endured under a martial arts master. The second is of a mission Scott went on that ended with him watching his friend get murdered. Scott later becomes drawn closer to a vicious crime ring known as The Octagon. As he gets closer to the truth, Scott learns that these may be the men that murdered his friend so long ago.

Octagon - hiljaiset tappajat actors and actresses include Aaron Norris, Art Hindle, Chuck Norris, Ernie Hudson, Gerald Okamura。