Christine Avila

Jack turns the tables on Gaines; Nina and Tony discover that the plot to assassinate the senator goes deeper than they realised; Sen. Palmer receives surprising news.

Holly takes her authority at Ojai Foods too far and pushes Saul and Sarah to their limits. Meanwhile, Kevin encounters homophobia in the work place for the first time.

An asthmatic man suddenly becomes unconscious and falls off of Dr Cuddy's roof while working on her house.

Gates and Morris help an elderly man who was assaulted on the street, Brenner and Dubenko clash while treating a mother thought to have late-stage cancer, and Dr Morgenstern returns to the ER to assist a seriously ill former mentor.

Lizzie identifies the woman who kidnapped her, rumours jeopardise an office relationship, and Cross is called to testify.

A teen who painted graffiti in Little Italy is slain; Donna makes a decision about her relationship with Medavoy; Sylvia is mugged.