不可能を可能にすると呼ばれる空手、拳法の達人・剣琢磨は、冷酷非情なプロの殺し屋。彼はその超人的な腕を見込まれ、香港に本拠地を持つ極東マフィア組織・五竜会メンバーの牟田口組組長・牟田口連蔵から、ある娘の誘拐を依頼される。その娘とは東南アジアの石油王の一人娘・サライ。だが、彼女を誘拐して石油王国を乗っ取ろうと画策する五竜会の魂胆を知った琢磨は、牟田口らの申し出を断わり、相棒のラクダとともにサライの身辺警護を買って出る。一方、琢磨が敵に廻ったことを知った五竜会会長・王石文こと英国人のキングストンは、九竜魔窟の大ボス・九竜断首（デインサウ）を雇い入れた。デインサウは大男の蒙古人や盲目の剣客、殺し屋琢磨に復讐心を持つ楯城らを引き連れて日本に乗り込む。果たして琢磨はサライを守りきれるのか！？
Sonny Chiba follows the money rather than his morals. He is absolutely nails in this film. His presence is as of a beast and no man. He is ruthless and brutal. The film feels like a 70s USA exploitation flick in a way, at least more so than a normal martial arts genre film. It's got a funky soundtrack and is streetwise. Fight scenes are really good and pretty savage in parts. There's an awesomely ridiculous shot of a guy's head taking a fatal punch via x ray at one point. Sonny pulls a man's tackle off at another. It's Sonny vs. The mob but they can't really be arsed with guns. Pure entertainment and stands out among martial arts films. There are also 2 decent sequels but this is the best of them. Worth it just for Sonny's incredible screen presence, which kinda feels as though he thought Bruce Lee was playing it too soft!
