Ultimate Sacrifice

Thirty years ago, a distant alien race, whose home planet was in danger because of their failing red dwarf star, tried to invade Earth and kill off all life using mind controlling, nanobots. They had visions of eventually coming to a lifeless Earth and begin terraforming the planet to suit their needs. Thanks to the unusual talents of Dorothy Keets, an inspired physicist, the world was spared from the almost unstoppable alien weapon, but the aliens were nothing if not persistent. Ten years following the first attack, they tried again, this time coming to Earth while ensconced in their nearly indestructible vessels, and using several alien techniques and different weapons — they nearly succeeded. The world's armies, after failing to so much as slow the second attack, called upon the same brilliant, slightly older, scientist, who helped stop the first attack. She, while devising a unique, devastating, weapon, was able to stop the attack.Behind her second victory, she was recognized as a worldwide hero, but her weapon "The Orb Weapon" was so unique — so overpowering — so maniacal, and possibly world ending, the President of the United States ordered it deactivated, and secured inside a vault deep inside the bowls of Area 51 where it would remain to never be used again — at least, that was the plan. The aliens, now repelled for the second time, were already making plans to return — and they did while bringing with them new weapons, but their attack, again, was thwarted. Dorothy's unconventional fearful weapon was un-crated, dusted off, and with a few modifications and enhancements, implemented to save the world once more. Not only were the desperate aliens repelled for the third time, but while retreating to their home world, accidentally left behind one of their own, who…