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.

A mishap on the aerial ladder in the midst of a fire rescue leaves Mouch shaken and questioning his abilities; Kidd looks for support from Severide while Casey and Brett discuss their future.

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.

Elizabeth is back from her injury, Paige's suspicions have increased in her mother's adsence and Stan falls for a Russian agent.

Philip and Elizabeth are ordered to go through with a meeting that could potentially be a set-up. Stan's investigation puts him and the FBI even closer to Philip and Elizabeth.