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).

Cruz’s past comes back to haunt him. Severide prepares to teach an arson class at the academy. Mouch searches for a victim’s next of kin.

Severide and Van Meter investigate a fire at a family-owned restaurant. Pascal questions Kidd’s leadership.

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!

On the way home with his family, Danny hits a man with his car who is fleeing from a gunman, and his family gets caught in the crossfire when Danny fires his weapon at the gunman. Frank deals with 9/11 guilt from impending loss of a friend whom he worked alongside at Ground Zero.

Severide is forced to crack open a cold case buried for decades. A routine call hits too close to home for Novak.