From the previews, we've also deduced that Derek has an outburst and lets his emotions get the best of him regarding Meredith's budding relationship with Finn. Denny, meanwhile, appears to react less than positively to some medical or personal advice he gets from the doctors (a pretty blonde one in particular). Will Izzie finally cross the line?
We'll have to wait and see for the details. Just three and a half more days to go! For a recap of last week's events, check out our Episode Guide and collection of Grey's Anatomy quotes. If you want to make the viewing of the upcoming episode a little more interesting (albeit a little fuzzy when it comes to remembering details), try our official Grey's Anatomy Drinking Game!