Clint works on solving a medical mystery, while trying to make a couple realize that their constant bickering is harming their son.

Nancy gets her first driving lesson, from Dr. Derek.

Derek believes he may have Glaucoma because his blood pressure is too high and may be losing his sight.

Dr. Crane wants to know how Tippy comes up with the sayings that grace the board in the waiting room because he can't seem to come up with any.