A hacker claims to have pertinent information about the leak at Princefield; Patty’s former colleague offers her services to Ellen.

Patty and Ellen seek the source of the Princefield leak, while Patty takes on Ellen through the press.

Someone from McClaren's past turns up and sheds light on his personal life; Patty has a confrontation with an adversary.

A blizzard strands Patty and Ellen; McClaren uncovers a major player in the trading scandal.

Series Finale: While looking to use Michael Hewes' custody hearing to bring down Patty (Glenn Close), Ellen (Rose Byrne) is double-crossed by a key witness in the McClaren trial.