The sexy heroine receives an ominous message from Professor Cyber boasting that he has captured her sister, Wonder Sarah, and threatens to capture more of her sisters until they stop interfering with his international nefarious dealings. Wonder Misty sets out to help Wonder Sarah escape. She confronts Professor Cyber and an epic back and forth battle ensues. During the fight, Professor Cyber disrobes the heroine in peril leaving her completely nude. Will Wonder Misty end up captive along Wonder Sarah? Or will she defeat the evil villain?