In a "Wizard of Oz" homage, J.D. is trying to go home, Turk searches for a heart donor and Carla worries, that she doesn't have the courage to become a parent. Meanwhile, Elliot doesn't believe, that she has the brains to lead a question and answer session. Also, the Janitor is painting color coded lines throughout the hospital for easier navigation.

J.D. meets the klutzy Julie, and when he becomes smitten, Elliot attempts to help out with romance advice. Meanwhile, Carla tries to find Dr. Cox's soft side, when he refuses to kiss his son. Turk and the Janitor put together an air band to win a contest, but Kelso gives them a tremendous obstacle.