A criminal organization hires a team of ninjas to steal the formula for a revolutionary new drug – one that's reportedly cheaper and more potent than cocaine. However, the industrialist who funded the research has implemented extensive security measures to prevent the formula from falling into the wrong hands. The ninjas discover they've only managed to steal half of it. To appease their angry employers, the ninjas attempt to blackmail the industrialist into providing the remaining portion. Now, it's up to the Mexican Ninja and his allies to intervene.