A studio script screener gets on the bad side of a writer by not accepting his script. The writer is sending him threatening postcards. The screener tries to identify the writer in order to pay him off so he'll be left alone, and then in a case of mistaken identity gone awry, he accidentally gives the writer solid ammunition for blackmail. This plot is written on a backdrop of sleazy Hollywood deals and several subplots involving the politics of the industry.

Frank Dux has spent most his life being trained by Tanaka to participate in the Kumite, the ultimate martial arts tournament, where participants are seriously injured, even killed. Frank decides to go despite being told by his superiors in the army that he can't because they need him. Two army officers are sent to get him and the trail leads to Hong Kong but Frank eludes them. While Frank advances, he knows that he may have to face Chong Li, the defending champion, who has killed a few participants.