In the sneak preview of the season finale below, Izzie Stevens has quite the decision to make - go through with a risky surgery that could strip her of her memory but may remove her brain tumor, or ride it out and most likely pass away within a few months.

It's not an easy call, as you can see:

[video url="http://www.tvfanatic.com/videos/heres-to-the-future-sneak-preview-1/" title="Here's to the Future Sneak Preview #1"][/video]

Follow the jump for six - six! - more season finale clips, in which Izzie and Alex both seek help in making this choice, Mark asks Lexie to move in with him (and is sort of shot down), Cristina asks Owen about therapy and Zach Gilford of Friday Night Lights shows up as a patient ...

[video url="http://www.tvfanatic.com/videos/heres-to-the-future-sneak-preview-2/" title="Here's to the Future Sneak Preview #2"][/video]

[video url="http://www.tvfanatic.com/videos/heres-to-the-future-sneak-preview-3/" title="Here's to the Future Sneak Preview #3"][/video]

[video url="http://www.tvfanatic.com/videos/heres-to-the-future-sneak-preview-4/" title="Here's to the Future Sneak Preview #4"][/video]

[video url="http://www.tvfanatic.com/videos/heres-to-the-future-sneak-preview-5/" title="Here's to the Future Sneak Preview #5"][/video]

[video url="http://www.tvfanatic.com/videos/heres-to-the-future-sneak-preview-6/" title="Here's to the Future Sneak Preview #6"][/video]

[video url="http://www.tvfanatic.com/videos/heres-to-the-future-sneak-preview-7/" title="Here's to the Future Sneak Preview #7"][/video]

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