Here's the official synopsis for the 12th episode of this season's Grey's Anatomy! This episode marks Izzie's (Katherine Heigl) return to Seattle Grace. Read the official synopsis on more details on what to expect during this episode!
AS DEREK'S CONCERNS ABOUT THE CHIEF GROW, IZZIE RETURNS HOPING TO RECONCILE WITH HER HUSBAND, ALEX, ON ABC'S "GREY'S ANATOMY"
Guest Starring Kim Raver ("24," "Lipstick Jungle") as Teddy Altman
I Like You So Much Better When You're Naked" - After learning of Richard's drinking problem, Derek confronts him for the sake of his friend and the hospital, Izzie returns, hoping to reconcile with Alex, and tensions run high between Teddy, Cristina and Owen in the aftermath of Cristina's startling confession, on "Grey's Anatomy," THURSDAY, JANUARY 21 (9:00-10:01 p.m., ET) on the ABC Television Network