Scott Jaeck

Dr. Sarah questions if she should leave a light on and the door open for Michael, who must betray the Pope in order to carry out his escape plan. Veronica finds evidence that points her to Montana, but realizes that her closest ally may actually be her greatest enemy. Michael, Lincoln and the other inmates make a break for it, but after the alarm is sounded, find out who will make it over the wall, who will be left behind and who will leave the prison in a body bag.

Severide feels compelled to help a man he saved from a car accident; Casey and Boden struggle to deal with the orders from Jones' father; a call to duty affects the firehouse.

Transferred to the psych ward, Michael tries to clear Haywire's head and jog his memory of the missing piece of the blueprint tattoo; Bellick wants to auction off Michael's cell to the highest bidder; C-Note and T-Bag must team up in a high-stakes poker game, while Sucre's cousin Manche seems to hold all the cards.