Meredith Grey is a first year surgical intern at Seattle Grace Hospital, the toughest surgical residency program west of Harvard. She and fellow first-year interns Cristina Yang, Izzie Stevens, George O'Malley and Alex Karev were students yesterday. Today they're doctors and, in a world where on the job training can be a matter of life and death, they're all juggling the ups and downs of their own personal lives.