Doug James

A cafe is bombed.

With the escape in motion, Michael, Lincoln and the inmates take flight outside the prison walls, risking life and limb to evade capture. Warden Pope and Captain Bellick embark on a relentless pursuit to capture the escapees; the Vice President fears she will lose her command as well as her life; and Veronica tracks down the most significant piece of evidence to prove Lincoln's innocence.

Casey goes to drastic measures to help his friend Kannell. Lt. Severide helps an old widow come to terms with letting go, but realizes he may be the one needing help. Otis and Cruz deal with surprises when they find a new roommate to move in.

Tom Kane is diagnosed with a neurological disease but must remain focused on his role in an upcoming gubernatorial primary.

With Zajac's campaign gathering steam, Kane needs to adjust to his health situation.

Kane's political and personal life is spiraling out of control, and his supporters begin to lose confidence in him.