A young woman approaches Lightman at his book signing, believing she has seen a murder. Lightman finds that the woman has multiple personalities, and he believes that one of her personalities witnessed the murder. Lightman passes off helping Agent Reynolds vet a potential Supreme Court nominee, instead choosing to pursue the case of the multiple-personality woman. The case is passed on to Torres, whom the nominee does not treat with respect due to her age. Torres puts her preconceived judgments about the man aside when she analyzes the facts. Lightman unlocks the woman's original personality, who helps Lightman find the original murderer. Zoe informs Lightman that she is taking their daughter, Emily, and moving to Chicago to open a law firm. Lightman buys out her stake in The Lightman Group so that she can start her own practice in town.

The Lightman Group helps a teenager who believes he was abducted as a baby, while Loker and Torres try to figure out what caused a deadly stampede at an electronics store.

The Lightman Group investigates the murder of a journalist and friend of Lightman’s who was killed while exposing a corrupt politician

Lightman tries to stop a man intent on revenge from robbing a bank.

Cal Lightman questions his own sanity while he tries to get a patient released from a mental hospital.