A Change Is Gonna Comegrey's Anatomy : Season 4... Link

Among the new interns is Lexie Grey (played by Chyler Leigh), Meredith’s half-sister whom she has never met, and George O'Malley , who is forced to repeat his intern year after failing his exams.

In a surprising move, Richard Webber appoints Callie Torres as Chief Resident, bypassing the more experienced and expectant Miranda Bailey. A Change Is Gonna ComeGrey's Anatomy : Season 4...

The episode title, inspired by the song of the same name, underscores the theme of inevitable growth and the pain that accompanies it. A Change is Gonna Come | Grey's Anatomy Universe Wiki Among the new interns is Lexie Grey (played

In one of the show's more unusual storylines, Izzie Stevens risks her professional reputation by attempting to save a dying deer brought in by a young boy, much to the confusion of her new interns. Core Themes and Character Shifts A Change is Gonna Come | Grey's Anatomy

The hospital is flooded with casualties from a three-car accident. Notable cases include a man who has suffered an "internal decapitation"—his head is held to his body only by skin and muscle—and a pregnant woman whose severed arm Meredith must locate.