It's science fair time and Josh is sure that this year his is the project to beat, but when Mindy Crenshaw makes a surprise return, sparks fly in the most unexpected places.
JD's new white coat does not bring the level of respect he anticipated, and Elliot has a one-night stand with a doctor.
Eric decides to start his own fraternity; Shawn begins to slack off on school work because he doesn't expect to get into college.