Somewhere in the future the environmental overkill had come. Many people had died. The rich were able to build the underworld, the poor had to stay on the surface building gangs to survive. Jason Storm, an underworld guard gets knowledge of a conspiracy to kill all people on the surface. He needs to flee to the surface, and wins Sumai, a respected martial arts master, as his ally to stop the dirty plot.

In this martial-arts actioner, Miami mobsters find themselves in mortal danger after an angry police chief hires the world’s most vicious fighters and uses them to launch a city-wide vendetta

Nick and Ruben are hoodwinked into a “shootfighter” (no-holds-barred, to the death) martial arts match by the evil Mr. Lee, who has a grudge against world shootfighter champ(and teacher of Nick and Ruben) Shingo.

An L.A. cop goes after a gang of murderous drug dealers.

Jean Claude Van Damme plays a dual role as Alex and Chad, twins separated at the death of their parents. Chad is raised by a family retainer in Paris, Alex becomes a petty crook in Hong Kong. Seeing a picture of Alex, Chad rejoins him and convinces him that his rival in Hong Kong is also the man who killed their parents. Alex is suspicious of Chad, especially when it comes to his girlfriend.

Frank Dux has entered the “kumite”, an illegal underground martial-arts competition where serious injury and even death are not unknown. Chong Li, a particularly ruthless and vicious fighter is the favorite, but then again Dux has not fought him yet.

A martial artist agrees to spy on a reclusive crime lord using his invitation to a tournament there as cover.