Casts : Ellen Pompeo, Sandra Oh, Justin Chambers
The interns, now residents, deal with their own crops of interns. Callie struggles with her new position, and Burke makes a decision.
Lexie persists in trying to get to know Meredith, and Mama Burke descends once more.
Callie hides in her office, frustrating Bailey who’s itching to teach someone. Elsewhere, age becomes the theme as Izzie tries to convince ‘Really Old Guy’ he shouldn’t die, Webber and Sloan set out to prove they’re not too old to learn a new technique, and Karev is saddled with an intern who’s past his prime.