Michael has been captured by Clean Slate and placed in an underground cell. While being tested by government doctors, he meets another alien named Adam, who has lived his entire life in the compound. Scared for himself and worried about Adam--Michael is glad for the distraction when a girl named Cameron is put in a cell next to him.
Cameron claims to be a psychic, but she is really a spy for Project Clean Slate, who is trying to get close to Michael to learn the names of the other aliens in Roswell. Despite her sinister intentions, Cameron is not a bad person--she is just a lost girl with a broken past. The closer she gets to Michael, the more she really does fall for him. Realizing that Michael is the victim, Cameron helps him and Adam escape.
Though Adam makes it to safety, Michael and Cameron remain trapped. Afraid of the great new world that he'd only read about in books, Adam manages to find Liz and the others. With Adam's help, the teens break into the compound to free Michael. Just as they are escaping, Adam suddenly destroys the compound in a rage and ends up killing Valenti. With the government no longer a threat, the teens are left wondering whether or not Adam is safe.