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).

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.

Severide is on edge after the arson attack, fearing what might be in store next. Shay and Dawson, meanwhile, plan to party away their problems.

Dr Halstead must face the consequences of the unauthorised resuscitation. A misdiagnosis leaves Dr Manning to make some difficult decisions.

Phillip is reunited with an old flame and the reunion leaves him questioning the nature of his relationship with Elizabeth. Meanwhile, Stan and Nina finally give in to temptation.

Members of Firehouse 51 are dismayed to learn their boundaries have been redrawn to overlap with an adjacent station, and problems quickly arise. Casey and Gallo hunt a missing piece of equipment. Brett and Foster find themselves at odds.