Mara must dive into the mind of a coma victim to try and identify the perpetrator on Reverie. "Altum Somnum" is the fifth episode of the show's first season.
Paul: This is different. This is risky. I don't even know if we can do it. Alexis: Oh, we can do it. Paul: The question is should we? Alexis: Why not? It's a great technical challenge and a perfect test case for Reverie's expansion.
