Tim Hopper

After an expensive portrait is stolen from a young woman, Neal tries to uncover the secret behind its origin, and he works with Peter to set up a sting, hoping to catch the cunning and deadly culprit.

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).

A member of the Firehouse 51 family remains in peril. Cruz lends a hand to Severide in the ongoing investigation.

Elizabeth and Philip take increasingly greater risks and Stan's pursuit of Directorate S suddenly begins to yield unexpected results.

Firehouse 51 prepares for their semi-annual firehouse inspection. Brett fights to save her paramedicine programme. Commander Martin Pearce asks Severide for a favour.

Severide overcomes new obstacles at the firehouse. Cruz finds himself at a loss amid family changes.