This unforgettable three-part event began with the ferry disaster in "Walk On Water." It continued last week in "Drowing On Dry Land," with the heroics of some interns and the death of one of their own.

In tonight's episode, titled "Some Kind of Miracle," Grey's Anatomy fans can only hope that the miracle is Meredith Grey being brought back to life.

When Grey's Anatomy returns tonight after least week's thriller, the surgeons pull out all the stops to make it happen.

Mer's fight to live affects everyone at Seattle Grace as people all over the hospital are having crises after the fallout of the ferry disaster.

A young man is having problems with brain-mouth coordination. Alex's attachment to the pregnant Jane Doe (Elizabeth Reaser) continues to evolve. Most importantly, we know someone dies in this episode - what we don't know is if that someone is already dead or if there is a second death.

Here's ABC's preview of tonight's episode (for a slightly different version, follow the link below to the second page of this post)...

[youtube]http://www.youtube.com/watch?v=c0QnOYM59Gs[/youtube]

We're on the edge of our seats, counting down the minutes. As always, we'll have our episode guide posted after the show, and start putting our list of quotes, image gallery, and music guide. Our official forums will be open for discussion immediately afterward!

Here's a slightly altered preview of tonight's show...

[youtube]http://www.youtube.com/watch?v=oDP23l2TfdU[/youtube]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.