Patty Hewes has been appointed by the U.S. government to recover billions of dollars lost to the largest investment fraud in Wall Street history. The new case pits Patty against the powerful Tobin family, which includes Joe Tobin (Campbell Scott), Marilyn Tobin (Lily Tomlin), and the family's trusted attorney Leonard Winstone (Martin Short). Meanwhile, Ellen Parsons adjusts to the challenges of her new job, and life, away from Patty Hewes.

Patty and Tom continue to dig into the Tobin family's sordid past, while Joe Tobin must decide between his family and his integrity. Ellen aids Tom in his investigation of the Tobin's, but in doing so receives some bad news of her own. While locked in the midst of a bitter divorce, Patty and Phil find one piece of common ground in the form of their beloved dog.

Patty drills Louis Tobin about his fraud while his son Joe makes a decision that will determine the fate of the Tobin family forever.

Carol Tobin suddenly disappears and it is up to Patty and Ellen to track her down. Arthur Frobisher returns to the fold to open his new foundation.

Ellen and Tom take matters into their own hands in an attempt to win the Tobin case; Patty Hewes is haunted by the price of her success.