- HD 1080
- Runtime: 104m.
- Status: Released
- 0
- Languages: en
- Country: United States of America
- Director: Eric Karson
- Stars: Chuck Norris, Karen Carlson, Lee Van Cleef, Art Hindle, Carol Bagdasarian
- keywords: martial arts, assassin, fight, revenge, ninja, vigilante, terrorism, massacre, one against many, warrior, neo-noir, action hero
- Production_studio: American Cinema Productions
- Slogan: In a world of choices, for one man there is no choice . . . he must face THE OCTAGON
- providers: MGM Plus, ScreenPix Apple TV Channel
- The The Octagon is featured in the top rankings of 1980
- #31 in Top Adventure Movies of 1980
- #75 in Top Action Movies of 1980
- #56 in Top Thriller Movies of 1980
Scott James, a veteran martial arts expert, is recruited as the protector of the wealthy and beautiful Justine after she becomes the target of a ninja clan. When Scott finds out that his ruthless arch-nemesis, McCarn , is involved with the stealthy and dangerous criminals, he is eager to settle old scores. Soon Scott is facing off against McCarn and the entire ninja horde in an effort to take them all down.