Winston Story

Derek searches for the best way to propose to Meredith; Callie tries to convince Mark not to blow his chance at real love with Lexie, despite his fear of Derek finding out; Izzie learns she has anemia.

Izzie returns to work while the Seattle Grace residents fear possible layoffs; Bailey and Alex's difficult case is further complicated by her schizophrenic son.

The Seattle Grace staff continue to mourn George's death; George's mother arrives but is unsure of what to do with his organs.

Cristina uses Meredith to get the solo surgery which Alex is also trolling for; Derek discovers he has a form of epilepsy; the interns perform surgery on Sadie which goes terribly awry, exposing their little club.

Addison, Naomi and Sam rush Archer to Seattle Grace to try and save his life; Owen runs into a significant someone from his past; Izzie employs her fellow doctors in a medical game to teach the interns.

Major Owen Hunt returns to be the head of ER trauma; Meredith finds an old doll her mother gave her when she was 5.