The big day has arrived! Izzie is so excited about the "perfect" wedding she's planned for Meredith and Derek. Meredith’s just excited to be marrying her McDreamy. Who wouldn’t be? But she’s still not so into the whole girly dream wedding thing. But Mer-Der are doing it for the sake of their sick friend.
Denny’s back. Talk about your wedding crasher! This time he’s gone goth, wearing a full black ensemble. It feels a bit ominous, if not a little creepy. We remember Denny being so much more warm and adorable when he was ALIVE! Bailey and Derek give Izzie an MRI but it’s clean. After another test, where Izzie actually summons the hallucination of Denny, Derek’s able to pinpoint a new brain tumor. It’s inoperable. Our hearts are breaking.