Can the doctors do it? Or is this the last we've seen of them?
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Or doing the best they can. George was a hero for what he did.
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Alex reacts as Izzie slips away from him, possibly for the last time.
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Is Izzie about to slip away into the afterlife?
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Meredith and John Doe (who we now know to be George) in the season five finale of Grey's Anatomy.
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Alex calls for help as Izzie fades into unconsciousness.
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Cristina and Izzie share a moment in "Now or Never."
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Meredith finally learns the identity of John Doe. And it's shocking.
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Grey's Anatomy Season 5 Quotes

Did you say it? 'I love you. I don't ever want to live without you. You changed my life.' Did you say it? Make a plan. Set a goal. Work toward it, but every now and then, look around; Drink it in 'cause this is it. It might all be gone tomorrow."

Meredith (closing voiceover)

Richard: I hear congratulations are in order
Meredith: What?
Richard: The engagement. Our very own Seattle Grace wedding. I couldn't be happier for the both of you.
Meredith: Thank you Sir. Did you have an assignment for me?
Richard: Dresses.
Meredith: I'm sorry?
Richard: Stevens has transformed her room into a bridal boutique. So go, try on dresses. That's an order.