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...

An international smuggler dressed as an Arab sheikh hires three unemployed young men named Masoud, Nader and Amir and takes them to Japan to bring the diamonds stolen from a temple to Iran.