J.D. and Turk's college buddy Spence drops by for a visit, and accidentally tells Dr. Cox that Jordan's baby is his. At first freaked out, Dr. Cox soon faces up his responsibility and stands up for his role as a father. Meanwhile, too much partying with successful Spence causes Turk and J.D. to show up late and drunk for work, which Dr. Kelso fully reprehends them for. They compare their lives with Spence's and wonder if being doctors is really the right thing for them.