In a clip from "Before and After" from Season Five, an intense surgery takes place with Derek at the helm. Archer starts coding, but Derek looks around for the worm that escaped the cyst.
[narrating] We all remember the bed time stories of our childhood. The shoe fit Cinderella, the frog was turned into a prince, sleeping beauty was awakened with a kiss. Once upon a time and then they lived happily ever after. Fairy tales. The stuff of dreams. the problem is, fairy tales don't come true. It's the other stories. The ones that start in dark and stormy nights and end in the unspeakable. The nightmares always seem to become the reality.
Meredith: What happened!? Cristina: A bus in front of him hit a telephone pole. He tried to swerve and miss it, but ... Meredith: How bad is it? Richard: Meredith - Cristina: Meredith, you're gonna have to be strong.