With Earth no longer habitable, Androids begin a new life on a distant planet.
Mother receives surprising guests with evil plans, and a question is posed about the possibility of the existence of inhabitants other than humans and androids on the planet.
Campion devises an escape plan as he suspects that Mother is poisoning the Mithraic kids after they fall ill.
Father seeks to make the children learn how to hunt some strange creatures on the planet to eat.
Marcus devises a plan to save the Mithraic children, but first he must locate them, while Mother tries to find out more about her origins.
After reviving her bond with her maker, Mother finds herself overwhelmed with strong emotions she never knew she was capable of feeling.
Marcus's relationship with his family is strained by his decisions as he struggles to maintain his influence as the leader of the Mithraic, while Mother sees him for what he is.
As Marcus continues his endeavors, Sue fears that he may no longer care about her and Paul.
As Sue is adamant about protecting the children, she grapples with the thought of whether or not Mother can be trusted.
As Paul exhibits alarming behavior, it leads to a revelation, while Father struggles with human-like feelings.