GREY'S ANATOMY - "Love Turns You Upside Down" - The new batch of interns find themselves involved in all the drama at Seattle Grace: Meredith asks Heather to go above and beyond to help fix Derek's hand; Cristina starts a healthy competition between Stephanie and Leah, which inadvertently leads to a medical emergency for Cristina's patient; Alex sees Jo in a new light as they work to save a baby's life, and April teaches Shane a valuable lesson during "lumps and bumps" duty, on "Grey's Anatomy," THURSDAY, DECEMBER 6 (9:00-10:02 p.m., ET) on the ABC Television Network. (ABC/RON TOM) TESSA FERRER, GAIUS CHARLES, KEVIN MCKIDD