Watch Grey's Anatomy - Series 4 - Episode 12 Online Free

Six weeks after Derek and Meredith ended their relationship and Derek began dating Rose, Meredith and her fellow residents, Alex, Izzie and Cristina, compete in a surgical contest, with Bailey serving as judge. Meanwhile interns George and Lexie adjust to their new, squalid apartment, and Callie finds a friend in her roommate Cristina's nemesis, Erica Hahn.