S04E04: 'The Heart of The Matter'

Transmission date and time TBC.

The Chief's wife, Adele, rushes their niece to Seattle Grace, the hospital where she once had her prom.

Izzie reveals her feelings for George to a mutual friend, and the reaction is not what she expects.

Derek teaches Cristina how to be a better teaching resident.

And the world's oldest living intern, Norman, misdiagnoses one of Meredith's patients.