Her alter ego, Cristina Yang, is heading away from Seattle for a new life in Zurich, but she's going to find it almost impossible to say goodbye to her best friend Meredith.
There is also her mentors, Richard and Bailey, and the love of her life, Owen, to bid farewell to – how are they going to cope without her?
As she's preparing for her flight, a possible act of terrorism rocks the city as an influx of victims of an explosion at a shopping mall brings chaos to the ER. Can Cristina save some lives before she leaves?
Grey's Anatomy, Sky Living, 10pm
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