Teddy Walker is a successful salesman whose life takes an unexpected turn when he accidentally blows up his place of employment. Forced to attend night school to get his GED, Teddy soon finds himself dealing with a group of misfit students, his former high school nemesis and a feisty teacher who doesn't think he's too bright.

A tough, brilliant senior resident guides an idealistic young doctor through his first day, pulling back the curtain on what really happens, both good and bad, in modern-day medicine.