Dr. Kelso looks back on forty years as a doctor, while an unfortunate new intern is forced to listen.
J.D. and Turk solve the two-year mystery of the purple pee, while Elliot and Carla try to rally support for Kelso.
When he's done Boring Boon, Dr. Kelso makes a big decision, and the staff learns just how much he cared for Sacred Heart Hospital.