In the year 2020,​ Earth is conquered by a malevolent alien life form.​ The last remnants of humankind barely escape death by hiding in the oceans and creating underwater ."Aqua-bases.​" One hundred years later,​ they are attempting to retake their world.​ The human survivors create a deadly strike force composed of one human and four,​ cybernetically enhanced,​ voluptuous young women: the mother...

Sawa may seem innocent and naive, but don’t be fooled. She is a cold-blooded killer, and if you’re on the wrong side of the law, you may be her next target. Not content to just watch as the imperfect justice system lets more and more criminals go loose every day, a detective decides to train the young Sawa to be his instrument of justice.

Sawa may seem innocent and naive, but don’t be fooled. She is a cold-blooded killer, and if you’re on the wrong side of the law, you may be her next target. Not content to just watch as the imperfect justice system lets more and more criminals go loose every day, a detective decides to train the young Sawa to be his instrument of justice.