Meredith's VO starts, showing that this really was two fully separate episodes of the show that ABC lumped into a solid time block for good finale ratings. "We spend our whole lives worrying about the future. Planning for the future. Trying to predict the future." Cristina is in Owen's Jeep and he asks her if she'll come with him. We don't know where, and we don't know what she does as Mere goes on. "As if figuring it out will somehow cushion the blow."
"But the future is always changing." At an Army recruiting center, a guy walks into the office of the man in charge and says they have one more, a doctor who has to do it today. He leaves and there's a knock at the door, which opens...
On Edna, having moved from Everwood to Seattle. While she stares, disbelieving, Meredith says, "The future is the home of our darkest fears." After a moment Edna asks, "Owen?" Cristina is in fact standing next to him as he says hello to his mother and tells her he's home; she then grabs him in a desperate bear hug and cries while Owen closes his own eyes and holds her, and by now I'm crying, too, because of all the things that get me, old people crying is up very near to the top of the list. "And our wildest hopes." Cristina gives a little bit of a smile as they continue to hug.
"But one thing is certain. When it finally reveals itself... the future is never the way we imagined it." The Army paperwork is handed back to the officer, who shakes someone's hand and welcomes him to the Army. And with that, the camera pans over to reveal that it's George, and we fade to the title card, having most likely not imagined this (unless you read spoilers).