Reese and Finch will need all the help they can get with their latest number, a young woman by the name of Caroline Turing, whose specialty as a therapist is to counsel high powered clients who expect and require complete discretion. They quickly learn that she is the intended victim as Fusco informs them that HR has entered into a lucrative contract funded by an unknown person or organization to take her out. Because of the mysterious nature of Caroline's clients, one of whom they believe is funding the assassination attempt, Finch and Reese call in an old friend whose own sources may provide greater information on those mysterious clients. The cat and mouse game begins to get multi-layered. As Reese and Finch try to get Caroline to safety, they are tracked by both HR who is after Caroline, and the FBI, with Carter's knowledge, who is after Reese. Added to the mix is someone from Finch's past, who, unknown to him, is trying to locate him. Through the process, Carter and Fusco come to some unsettling revelations. And when they all learn who funded the assassination attempt and why, more than Caroline's life is at stake.