Tim Hopper

Izzie faces her past and finds comfort in George, while Alex becomes more attached to Jane Doe (Elizabeth Reaser), Meredith and Derek question their own status, and Cristina resolves to fight for her relationship with Burke -- despite her past with Colin Marlow (Roger Rees).

Severide investigates a suspicious high school fire. Novak gets an unexpected call. Violet brings a 51 firefighter onboard the ambulance for a shift.

When an expensive portrait is stolen from a young woman, Peter and Neal set a sting for the cunning and deadly culprit. Neal must uncover the secret truth of the portrait’s origin even as the net tightens around the villain – and around Neal himself!

Casey struggles with his new responsibilities; Severide dreads the arsonist's next attack; Mouch starts campaigning; Dawson and Shay decide they need to get out more.

When an act of arson harms someone close to the Firehouse 51 family, Severide must track down the perpetrator. Impending budget cuts push Mouch and Pascal to get creative.

Firehouse 51 must band together after a devastating fire catches them off guard. Vasquez continues his quest for answers. Violet and Novak face an unexpected roadblock in the new training protocol.