Chemistry. Either you have it, or you don't. - Meredith

Thanks to the writers' strike, Grey's Anatomy looks to be finished for Season 4, leaving us with repeats. This week's is "Physical Attraction, Chemical Reaction."

All the action is covered in the Insider's official episode guide, and we have pages on our site dedicated to this episode's Grey's Anatomy music selections, photos, and quotes. Our staff round table offers a lively discussion of topics, as well.

As always, you can discuss the events of "Physical Attraction, Chemical Reaction," along with everything else about Grey's Anatomy, in the Insider's FORUM. You must register first if you haven't before. It's free and easy!

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