Air Date: January 6, 2011 at 12:00 AM PST
The docs at Seattle Grace Mercy West are forced to relive the trauma of the big hospital shooting when a gunman opens fire on a nearby college, wounding 26 people. Cristina just happens to be near the campus after the shooting, so she helps out the EMTs and eventually goes back into the OR. Arizona tries to get Callie to forgive her but isn't having much luck. Oh, and Teddy gets married. Read the full recap here.