With so much up in the air, the great "Migration" begins May 10 on Grey's Anatomy.

On the penultimate episode of Season Eight, the residents finally decide their future as they arrive at their final decisions regarding post residency positions. Will any of them fly away from Seattle for good?

Meanwhile, Mark admits to Derek that he is torn between his love for Lexie and the fact that his new girlfriend, Julia, can give him everything he's ever wanted. Will he follow his head, or his heart?

Finally, Ben plans something extra special for Bailey, but she is preoccupied with work, Arizona encourages a childhood friend, Nick, to have surgery, and couple on their third honeymoon shows mysterious symptoms.

The following week's season finale will be titled "Flight." Follow these links for the latest Grey's Anatomy season finale spoilers, including hints of a major death to come. Then click to enlarge photos from "Migration":