Laura Chinn

Teenagers fill the ER after a school-bus crash; Bailey treats a patient who was her high-school crush; Derek goes on a date with a fellow doctor; Thatcher enters the ER looking for Meredith.

The Lightman Group discovers that a governor's staffer who was killed during a rally right before the election may have been the target all along to protect a cover-up; Clara might be lying to protect somebody on the inside.