An ambitious young lawyer joins a high-profile litigator to expose a billionaire's stock market manipulation and ends up as a suspect in a gruesome murder.

Ellen plans to deliver her friend Katie as a key witness, but Patty has suspicions about her testimony; pressure begins to mount on Frobisher.

A mysterious threat at Patty's office places the entire case in jeopardy; Ellen learns the demands of her new professional commitment; Tom finds some interesting information on Katie.

Frobisher pushes Fiske to take a more aggressive approach with Patty; Tom questions his career choices and seeks the advice of an outspoken friend.

Patty pursues Gregory, eager to learn his secrets; an emboldened Frobisher attempts to salvage his legacy; Lila ominously reappears in David's life further testing his relationship with Ellen.