Below is a clip from tonight's season finale of Grey's Anatomy, which is listed as two episodes - "Here's to the Future" and "Now or Never." For Izzie, it really could be now or never.

Will she embark on a risky new treatment that could risk her memory? Or will she give up and enjoy her last few months as the person she is now? How will Alex react to this?

Check out the clip below to see what she's up against ...

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

Want more spoilers for this evening's epic two-hour season finale event? Follow these links for more Grey's Anatomy pictures and previews from tonight's episode!

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