In the early twenty-first century Earth is visited by an alien race, the Taelons. They claim they wish to share knowledge with the rest of humanity in the hopes of getting to know us better. William Boone is assigned protector of Da'an, the Taelon "companion" for North America. But Boone is really working for the human resistance who are trying to learn the Taelons' true motives, which may not be as generous as they claim. Their true mission, the secrets they hide, forever alter humanity. In the struggle for our planet, the battle between these Taelon Companions and the Human Resistance, holds the key to Earths future and the fate of mankind.
