- The Control Voice: God is said to have reached into the firmament and made humankind in his own image. But whose image will be mirrored when we gain the same awesome power?
A man clones his comatose wife, but when his wife wakes up, this poses a problem.
- The Control Voice: The desire to be an individual is one of humankind's deepest longings, surpassed only by the will to survive.
- Brain Uploading: Zach and Nora Griffiths have developed a process for Cloning Body Parts, which has secured their company TranGennix a contract for $1 billion. They tell their business partner Peter Chandler that they can expand their business as they have the technology to copy a person's neural engrams. Zach suggests that it could be used to copy the memories of a man in the early stages of Alzheimer's and these memories could be uploaded back into his brain after the disease becomes more advanced. Peter is extremely reluctant to go along with their plan as he believes that the only way to copy someone's memories is to clone them and human cloning carries a minimum 20 year prison sentence. Believing that Peter will try to take the neural mapping technology away from them, Nora elects to use it on herself in spite of the fact that she and Zach have not performed any tests on human subjects. However, the process leaves Nora in a seemingly irreversible coma. One year later, Zach decides to clone Nora as he can't stand the idea of living the rest of his life without her. He gives the clone all of the original Nora's memories. She doesn't even realize that she is a clone until Zach shows her that she doesn't have a surgery scar on her back. Things become more complicated when the original Nora wakes up from her coma.
- Clones Are People, Too: The clone in question, complete with the memories of the original, was created to replace the wife of a bio engineer who was wrongly thought to be irreversibly comatose. When the original awakens, a discussion begins of how to handle the copy, but murder is clearly off the table and instead their plan would allow the clone to have her own independent life.
- Cloning Blues: Subverted with one of the few happy endings in the series.
- Cloning Body Parts: The company TranGennix receives a $1 billion contract to produce cloned organs. The process was developed by the husband and wife team of Zach and Nora Griffiths, who own TranGennix with Peter Chandler.
- Converse with the Unconscious: Zach Griffiths talks to his wife Nora, who has been in a coma for a year, every time that he visits her in hospital.
- Disappeared Dad: In "Replica", Nora Griffiths was abandoned by her father when she was a little girl. As a result, she found it very difficult to trust people until she met her future husband Zach.
- Expendable Clone: Subverted when a bioengeener's wife emerges from a coma that was incorrectly thought to be terminal she states that the clone (who has her memories) created prior to her awakening needs to be "disposed of". She quickly notes that she does not mean termination: she is instead suggesting erasing the clone's memories and leaving her in a far away city where she can hopefully start a new life (in the end, the clone ends up with a clone of the bioengineer himself and Everybody Lives).
- Spot the Imposter: The clone of Nora Griffiths knocks her out and pretends to be her, trying to trick her husband Zach into thinking Nora is the clone. Zach isn't fooled for long because Nora has a scar that the clone lacks.