She wants to put her mother to rest, and ends up washing the ashes down the sink in the scrub room. When Izzie asks a question, Callie announces to everyone that Izzie slept with her husband.
Izzie and George just try to make it through the day.
Meredith gets stuck with Norman, the elderly intern.
He looks at the chart wrong and they tell a healthy patient that she is going to die.
George tells Izzie that he will tell Callie on his own time.
That night he tells Callie that he'd slept with Izzie.
Read more about all of the episodes in season 4 to learn what happens.
Meredith feels sorry for Cristina, so she gives her a surgery and Meredith takes Cristina's interns, including Lexie.
She tries to teach Lexie, but Lexie gets mad and Meredith sends her to the clinic.
Meredith tells Cristina that she hates the idea of Lexie, but the person herself isn't so bad.
Meredith dreams of her mother and feels she is being haunted, so she takes the urn out of her closet and puts her mother's ashes into a plastic bag and takes them to work.