In San Francisco's Chinatown, a band of thugs kidnaps a girl for a large Chinese gang. Her half-brother gathers a team of expert fighters to get her back.

Madame Lu has created three "Death Machines," a trio of martial arts experts who have been injected with a special serum, turning them into mindless zombies, capable only of murder, at Lu's command. Tasked with eliminating her enemies, the Death Machines go on a blood-soaked rampage, killing anyone in their path. After they massacre an entire dojo, leaving only one survivor, the Death Machines and Madame Lu herself become the targets of his vengeance...

Top government agent, David Chase is assigned to protect renowned biochemist Teresa Hardgrave, who holds the formula for total recall. Seeking the formula are Madame Woo and her vicious boss, Mr. Chan, who kidnap Teresa and force her to undergo a series of sexual punishments.