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).

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.

Severide and Kidd investigate an explosion at a jewellery store. Cruz and Chloe take steps to make Javi a permanent part of their family. Gallo, Ritter and Mouch try to bond with Carver.

Severide and Seager team up to investigate a fire at the home of a troubled young woman; Pelham moves into 51's rumoured cursed office; Kylie assists Kidd with Girls on Fire.

Novak explores a new romantic connection. Vasquez deals with the aftermath of his father’s recent release.

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