A millennium after humans vanished from Earth, two farming robots find a little human girl and start to take care of her, at great risk to themselves.

After her interaction with Zurich, Sara flees Eden Three and reunites with her parents. Together, they follow a puppy-like robot to an abandoned house.

Sara's desire to go to Eden Three continues to grow, but her worried parents are dead set against it. Then, a recon squad from the city spots Sara.

With time running out, Sara learns more about her own past, and the role Dr. Weston Fields played in creating Eden.