In the year 2020,β Earth is conquered by a malevolent alien life form.β The last remnants of humankind barely escape death by hiding in the oceans and creating underwater ."Aqua-bases.β"
One hundred years later,β they are attempting to retake their world.β The human survivors create a deadly strike force composed of one human and four,β cybernetically enhanced,β voluptuous young women: the motherly Midi,β the spirited Voogie,β the hard-hitting Rebecca,β the innocent Merrybell,β and the pensive Shiori.β
Specially trained and armed with the latest weaponry,β they carry out guerrilla attacks against the alien invaders!