They Came for Earth

The encrypted signs are there for all to see. However, it's not until they're properly interpreted that NASA knows it must act. A clandestine group of college professors and graduate students operating under a NASA grant in a secret complex hidden beneath a college campus is given a challenging task-the task to gradually acclimate Earth to the existence of aliens who've been observing the planet and its inhabitants for decades. Events take an unexpected turn, however, and when the pieces to the puzzle fall into place, a sinister secret is discovered. The resulting race to save Earth takes an ordinary young man on an extraordinary journey across the galaxy.