While the writers' strike threatens to truncate Season Four, we have no choice but to hold out hope and enjoy it while it lasts. Here's a brief promo for Thursday's all-new episode of Grey's Anatomy, "Physical Attraction, Chemical Reaction."

[youtube]http://www.youtube.com/watch?v=0uCoSfOnY-A[/youtube]

We also have a photo gallery up for the episode if you're interested. More promos and clips from "Physical Attraction, Chemical Reaction" to come!

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