In the first part of the two hour season finale, Izzie spends time with a fellow cancer patient and contemplates whether or not to undergo a risky surgery, as Mark is ready to take his relationship with Lexie to the next level and a patient makes Owen reassess his place at Seattle Grace. This is the first hour of a 2-hour season finale. A two episode entries have been created. The 10pm EST marker will mark to beginning of the second episode.