It's the age-old question that has daunted scientists, government officials, explorers, religious leaders and populations around the world for centuries - have aliens made contact with Earth? While more than half the U.S. population believes they have, most sightings and theories still lack the evidential proof to silence the naysayers. In , six highly trained investigators seek to find the answers we've all been searching for. Using groundbreaking CIA developed software, military special operations investigative techniques and boots-on-the-ground journalism to track down leads around the world, is the first ever global investigation to determine whether or not aliens have made contact here on Earth.