Grey's Anatomy is all new tonight with its 11th episode of Season 9, "The End is the Beginning of the End." For some quality previews of what's to come this evening, see our Grey's Anatomy sneak peeks.

Looking ahead to next week, Constance Zimmer makes her first appearance as Dr. Cahill, as evidenced by the photos released by ABC, and the doctors are "on edge" because of her character's arrival.

Meanwhile, Arizona struggles with the emotional and physical pain of a phantom limb, and while battling pregnancy hormones, an overly-emotional Meredith is confronted with her worst fear.

Scroll through the photos from "Walking on a Dream" and comment below:

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.