Picks and Pans Review: First Look! Grey's Anatomy Surprise Wedding

updated 09/20/2010 AT 01:00 AM EDT

originally published 09/20/2010 AT 01:00 AM EDT

Doctors in love Cristina Yang and Owen Hunt say 'I do' on the ABC hospital drama's season 7 premiere.

If Grey's Anatomy's May season finale-in which a crazed gunman terrorized Seattle Grace Hospital and left two doctors dead-wasn't shocking enough, the ABC drama has another big twist up its sleeve. In the Sept. 23 premiere Owen Hunt (Kevin McKidd) spontaneously pops the question to fellow doc Cristina Yang (Sandra Oh) and the two rush to the altar-actually, Meredith's (Ellen Pompeo) living room. "Big life things happen when people go through traumatic events that are life and death. You understand what is important to you," says Oh, 39. "[Cristina] decides to get married based on an essential need to be safe." Filming the "relaxed and casual" nuptials was fun for the cast, especially because they weren't wearing scrubs. "Everyone looking so great and glam," says Oh, "it's rare for us!"

-MONICA RIZZO

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