ELLEN POMPEO, SANDRA OH Photo

From: Photo Flash: Next Week's All New Episode of GREY'S ANATOMY

On next week's episode of GREY'S ANATOMY, entitled 'Walking on a Dream,' the Seattle Grace doctors are on edge when a new medical professional enters the hospital; 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, on 'Grey's Anatomy,' THURSDAY, JANUARY 24 (9:00-10:02 p.m., ET) on the ABC Television Network.