201 Raindrops Keep Fallin' on My Head

Summery

Derek's wife Addison sticks around Seattle Grace to work on a high profile fetal surgery case. Joe, the friendly bartender across the street needs a major surgery, drumming up sympathy from everyone in the hospital including Alex. Izzie sees this softer side of Alex. George is assigned "sponge duty" for the still recovering Richard (brain surgery in 108). Burke wants to go on an actual date with Cristina, but she's got other things on her mind. Meredith has to work with her boyfriend's wife

Source: http://abc.go.com/primetime/greysanatomy/index?pn=recap#t=89823&amp;d=89703