Jordan Hofer, a former university instructor of human evolution and now author and MUFON Research Specialist in Anthropology, presents never-before-heard speculations and hypotheses that address troubling questions surrounding the Gray aliens' evolution and interference with the human race. How did the Grays evolve? Why are they here, and what is their real agenda concerning abductions, implants, hybridisations, and mutilations? How long have the Grays been on earth and how extensively have they tampered with human evolution? Are they our benevolent space brothers or our cruel masters? Is there any way humans can fight back against a technologically superior species? Hofer explores these questions from the perspective of evolutionary biology and Darwinism, leading to the startling hypothesis that the Grays and humans are competing organisms locked in a galactic struggle for existence.