Generator Rex Episode 18 Plague Episode Title:Plague.Episode Description:An EVO virus breaks out across North America, causing all humans to fall into a deep sleep, while EVOs remain apparently immune. Rex, directed by Dr. Holiday (who has kept herself awake via neuroelectric shocks), is one of the only Providence agents still active, and is forced to deal with EVO threats across the continent and prevent anyone from getting hurt. After Dr. Holiday falls asleep as well, Rex is joined by White Knight himself in a massive battle suit, and the two close in on "Patient Zero," the source of the EVO virus. When White Knight attempts to kill Patient Zero, he and Rex come at odds and then battle. White Knight reveals that he is the only pure human left on Earth, lacking any nanites in his body, and thus cannot turn into an EVO. Rex defeats Knight, but both are then attacked by a monster made of the virus. Rex is able to cure Patient Zero by entering the monster, and humanity is awoken from the virus. Rex later admits that he and Knight are similar, both being one-of-a-kind.