The FBI is trying to find a serial killer who was last active 26 years who appears to be active again. One of his victims from 26 years ago was so traumatized that she was placed in a psych ward. But Daniel thinks that the doctors misdiagnosed her and that she can help them. Problem is that she thinks it's 26 years ago and that she's still a teen.
Kate wants to impress a new boss and asks Dan to evaluate a young man who's been accused of stalking a federal judge. The judge earlier remanded the young man for treatment as a schizophrenic. When Daniel evaluates the kid as harmless only to have the judge stabbed to death hours later, Kate is told to leave the case alone but Daniel is convinced that the kid is not responsible.