J.D. and Carla struggle as cracks appear in their friendship. Turk battles Kelso for a prime lunch spot and Cox and Elliot disagree over the discharging, or not, of a patient.
When Jake repeats to Judith something Charlie says, she refuses to let Alan take Jake for the weekend. Alan tries to talk to Judith, but encounters resistance from her and her friends. It's up to Charlie to set things right.
Michael appoints Dwight as regional manager, anticipating that he will receive the job at corporate. Jim and Karen also interview for the same position. And Michael gets back together with Jan after she gets a boob job.
The store hosts a gender reveal party for Glenn and his wife Jerusha, just as Dina is freaking out at the realities of having to deliver a baby. Meanwhile, Amy receives some unsettling news.