Laura Chinn

The ER is filled with teenagers after a schoolbus crash, Bailey treats a patient who was her high school crush, Derek goes out on a date with a fellow doctor.

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, and Clara might be lying to protect somebody on the inside.

Dave and Alex start seeing each other again but are determined to keep things casual and date other people. Meanwhile, Max looks after Penny after she falls down the stairs and is put in a body cast.

Stark's team prepares to prosecute a misfit chemical-engineering student for a campus bombing that killed another student.