Zach agrees to help Raven and finds himself drawn into a world he never knew existed. Zach Harleigh was a baby when the aliens arrived. He doesn't remember much about those months, except his parents fighting and his dad leaving. His father died, destroying the aliens, and his mother died when Zach graduated from medical school. He's alone in the world and working hard to get his career going leaves no time for any kind of relationship. One night, a beautiful man is brought into the ER. Raven Sanderson has been severely beaten and seems unsocialized. Raven and Zach hit it off when Zach takes over his care. Raven can't speak but writes notes to Zach, letting him know the man is in the city to find his sister. Zach agrees to help Raven and discovers a world he never knew existed. A world full of alien creatures that read minds and heal with a simple touch. He realizes there is more to the world around him, and the aliens he thought were destroyed weren't. Their offspring walk among us.